Endura Flap Custom Thermo Panel 3e
- Insulated, energy-efficient pet door for sliding glass doors with custom sizing
- Durable aluminum frame offers superior climate control
- Fits sliding glass door tracks 1" thick and can be adjusted to accommodate varying heights
- Pet flaps available in sizes from small to extra-large, allowing pets of all sizes access
- Built-in magnetic closure enhances storm and wind resistance, while ensuring the flap remains securely shut
- Made with 3/16" clear safety glass which is 59% thicker than the standard for enhanced durability and increased energy efficiency. Prefer dual pane glass? Explore our Dual Pane Thermo Panel
Product Details
Sizing & Fit
Installation Guide
FAQs
ReviewsProduct Details
Grant your pets the freedom they crave with the Custom Endura Flap Thermo Panel 3e, an innovative and energy-efficient pet door solution for your sliding glass door. With a durable aluminum frame, this pet door is designed to withstand extreme climates while providing superior insulation and energy efficiency.
Installation is a breeze, thanks to its spring-loaded design that fits securely into your sliding glass door track without permanent alterations. The Thermo Panel 3e is adjustable to accommodate varying door heights, and custom sizing is available to ensure the perfect fit for your home.
The pet flaps, available in sizes ranging from small to extra-large, cater to pets of all sizes. The environmentally-friendly polyolefin polymer flap remains flexible in temperatures as low as -40 degrees Fahrenheit, ensuring smooth operation even in harsh weather conditions. A magnetic closure on three sides of the flap enhances storm and wind resistance while keeping the flap securely shut when not in use.
For added security, the Thermo Panel 3e includes a C-Clamp Lock and a locking cover that allows you to block access when needed. The pet door's structurally sound design is built to last, sparing you the expense of frequent flap replacements.
With the Custom Endura Flap Thermo Panel 3e, you'll experience the benefits of increased temperature stability inside your home, and fewer insects making their way in. Invest in a pet door that combines convenience, energy efficiency, and durability with the Custom Endura Flap Thermo Panel 3e.
Don't see your track height? Check out the Endura Flap Thermo Panel 3e. For a dual-pane option, see the Custom Dual-Pane Panel or the Standard Size Dual-Pane Panel.
Features:
- Easy-to-install spring-loaded design that fits into your existing sliding glass door track
- Constructed with environmentally-friendly polyolefin polymer flap, flexible in temperatures as low as -40°F
- Magnetic closure on three sides of the flap ensures excellent wind resistance and secure sealing
- C-Clamp Lock included for to lock the slider into the door frame or a Charley Bar can be purchased separately
- Designed and engineered in the USA
Benefits:
- Easy installation with spring-loaded design allows you to remove the panel easily if need be
- Included locking cover allows you to block access when needed
- Structurally sound design is built to last so you don't have to spend a fortune on replacement flaps
Size Chart
- Small 6"w x 11"h
- Medium 8"w x 15"h
- Large 10"w x 19"h
- Extra Large 12"w x 23"h
Flap Dimensions:
6"w x 11"h
The entry way your dog goes through.Overall Panel Width
10 3/16"
How wide your panel is.
Step-Over Height
3” - 5”
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
8"w x 15"h
The entry way your dog goes through.Overall Panel Width
12 1/4"
How wide your panel is. Step-Over Height
3” - 5”
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
10"w x 19"h
The entry way your dog goes through.Overall Panel Width
14 1/4"
How wide your panel is.
Step-Over Height
3” - 7”
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
12"w x 23"h
The entry way your dog goes through.Overall Panel Width
16 5/16”
How wide your panel is. Step-Over Height
3” - 7”
The distance from the bottom of the panel to the bottom of your flap.| Flap Size | Flap Dimension | Step Over Range | Overall Panel Width | Recommended Pet Height |
|---|---|---|---|---|
| Small | 6" w x 11" h | 3" - 5" | 10-3/16" | 9" - 15" |
| Medium | 8" w x 15" h | 3" - 5" | 12-1/4" | 9" - 21" |
| Large | 10" w x 19" h | 3" - 7" (ships at 5") | 14-1/4" | 9" - 27" |
| Extra Large | 12" w x 23" h | 3" - 7" (ships at 5") | 16-5/16" | 9" - 34" |
Here is a measurement guide to help you out. Wondering how to measure your track? Review our Track Measuring Guide.
Track Height Adjustment range is based on the measurement of your door height from the lowest point of your track to the highest point. Each Custom Endura Flap Thermo Panel 3e has a 3" adjustment range with your window track height approximately in the middle. T
Custom Height Minimum & Maximum Heights:
| Model | Minimum | Maximum |
|---|---|---|
| Small | 35" | 120" |
| Medium | 42" | 124" |
| Large | 48" | 130" |
| Extra Large | 46" | 134" |
Choose the range that your track height falls into and when ordered you will be asked to give the exact height of your slider track inside very top to very bottom. In each case you will have 3" of height adjustment with the height you specify approximately in the middle of that range. The ranges are:
- Under 74 3⁄4"
- Between 80 1⁄4" – 93 1⁄4"
- Over 96 1⁄4"
Most sliding glass doors will accommodate the three-panel sizes offered. However, if our standard panels do not match your door size, we can build a custom Thermo Panel 3e for you. We can also custom make a panel for left-to-right sliding sash windows as long as the window track width is at least one inch. Custom height option may take up to 4 weeks to special order the glass and build the panel.
The panels have a 3-inch spring-loaded height adjustment, so if you request a 40" panel, the panel you receive will adjust from 38" to 41" inches. If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution.
Find The Best Pet Door Size For My Pet
A
Pet Height: inches
B
Pet Width: inches
Installation Instructions
Difficulty
Easy
Steps
06
Time Required
0.5 hours
Sections
02
Flags
02
Parts
- Panel Pet Door
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- Sliding Door C-Clamp Lock
- Screwdriver
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
One-Piece Panel
Step 1 Adjust the Step Over (Optional)
- The top of the flap should be positioned to be at least 1” above the top of the pet’s shoulder.
- If the factory setting is not suitable, please adjust it before proceeding. If the current setting is suitable, proceed to the “Installation Instructions” section.
Step 2 Adjust the Screws
- Lay the entire panel on a flat surface.
- Using a #2 flat head screwdriver, remove the bottom side-screws and loosen the upper side-screws. Screws were tightly installed to hold the panel together during shipping; a power tool* is recommended.
Step 3 Adjust the Spacers
- Once the bottom screws have been removed and the upper side-screws loosened, the Pet Door Assembly and spacers can be removed by sliding the sections down and out of the panel.
Step 4 Replace the Spacers
- Replace the spacers and the Pet Door Assembly by sliding them back in a different order to achieve the desired height. You can move the spacer below and above the flap to raise or lower the flap height.
Step 5 Tighten the Screws
- When finished, replace the bottom side-screws and tighten the next upper-side screws.
Step 6 Unlock Spring Mechanism
- Loosen the height adjustment locks at the top of the pet panel with the screwdriver. This allows the spring mechanism to move freely up and down.
Step 7 Test Fit the Panel in Your Track
- To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold.
- Seat the panel on top of the small guide rail in the track.
Step 8 Apply the Weatherstripping
- Once you’re sure the panel fits, remove it from the frame and lay it on its side on the ground.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive.
- Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim it fit with scissors.
Step 9 Install the Draft Stopper
- The center post weather seal strip (draft stopper) should be installed on the inside of the home.
- Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
- Repeat step two to install the panel in your track.
Difficulty
Easy
Steps
06
Time Required
0.5 hours
Sections
03
Flags
02
Parts
- Top Glass Panel Section
- Bottom Flap Section
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- 4 Flathead Screws
- Flathead Screwdriver
- Screwdriver for Adjustment Locks
- Sliding Door C-Clamp Lock
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
Two-Piece Panel
Step 1 Adjust Step Over Height (Optional)
- The top of the flap should be positioned to be at least 1” above the top of the pet’s shoulder.
- If the factory setting is not suitable, please adjust it before proceeding. If the current setting is suitable, proceed to the “Installation Instructions” section.
Step 2 Rearrange the Pieces (Optional)
- Simply slide the pieces up and out from the bottom half of your panel to rearrange.
- Loosen a bottom screw if the pieces are too snug to move.
Step 3 Reconnect the Pieces (Optional)
- Replace the spacers and the Pet Door Assembly by sliding them back in a different order to achieve the desired height.
- You can move the spacer below or above the flap to raise or lower the flap height.
Step 4 Screw the Pieces Together
- The order of the pieces is important! The piece on the bottom needs to always be at the bottom, as that is where the screws attach. You can now assemble the patio panel!
Step 5 Align the Connectors
- Remove the 2 flat head sectional connector screws from the exposed part of the connector on each side.
- Align the aluminum connectors extending from the bottom flap panel section with the top glass panel section.
- Press the aluminum connectors into the holes at the bottom of the top glass panel section.
- Ensure locking cover & height adjustment locks are on the same side!
Step 6 Tap the Pieces Together
- Gently tap the bottom surface of the panel against the ground to completely insert the connectors.
- Protect hard surfaces to prevent scratching.
- The components of the panel are designed to slide together very tightly.
Step 7 Secure the Sections
- Fasten the two panels together using the four flathead screws.
- Use the included flathead screwdriver to tighten all four flathead screws so the two halves of the door are pulled together.
Step 8 Adjust Spring Mechanism
- Loosen the height adjustment locks at the top of the pet panel. This allows the spring mechanism to move freely up and down.
Step 9 Test Fit the Panel in Your Track
- To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold.
- Seat the panel on top of the small guide rail in the track.
Step 10 Apply the Weatherstripping
- Once you’re sure the panel fits, remove it from the frame and lay it on its side on the ground.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive.
- Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim it fit with scissors.
- Repeat step two to install the panel in your track.
Step 11 Install the Draft Stopper
- The center post weather seal strip (draft stopper) should be installed on the inside of the home.
- Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
Adjusting Stepover Height
Lock Details
Since you cannot lock your sliding door to your panel pet door, we have provided you with alternative locking methods to secure your home:
Installing the sliding door clamp: This clamp has a screw that tightens by hand to prevent the sliding door from moving beyond the clamp’s placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.
If you aren’t able to use the lock that comes with the panel: A great alternative to locking your sliding glass door is a Charley bar or dowel in the track. Both work off the same concept – they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
Other Installation Options
Semi-Permanent Installation:
You might choose to secure the panel in your track with screws. This can be done by drilling screws at an angle in the top and bottom tracks. We recommend doing this from the outside to minimize damage to the sliding glass door frame. One-way screws will prevent tampering or removal of the panel from the outside.
Stationary Panel:
Some stationary sliding door panels can be unfastened and moved over to one side so that you can install the pet door panel between the jamb and stationary panel.
Avoid damaging your sliding glass door by checking that your door can move and that you can reinstall it properly before trying to uninstall the unit.
You will still lose space in your slider to move through, however, you will be able to use your existing sliding door lock to secure your home. Installing your pet door this way is also great in that you already have an alarm system in place.
If your sliding glass door slides on the outside track, using an alternative lock might not be possible, so this allows you to still lock your door.
NOTE: You can do the stationary panel install with the regular spring actuator method – no need to screw it in.
Videos
ENDURA FLAP® PET DOORS: Endura Dog Door Impact Test
How to Measure Your Sliding Glass Door for a Pet Door
How to Adjust the Magnet Strength on Your Endura Flap
How to Adjust Your Stepover
FAQ
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What is the thickness of the panel? The patio pacific endura flap thermo panel 3e is 1" thick. It is only thick enough for a single flap, not a double flap. |
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Does this panel work with vinyl sliders? Yes, the endura flap 3e is compatible with most vinyl sliding patio doors for a vinyl-pet slider that matches your existing track. At 1" thick, it is thicker than most aluminum panels, so it will fit better in a vinyl track. The track width may not line up exactly with the panel, but it is only an issue with the aesthetics, not functionality. |
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Does this keep mice, rats, and other pests out? This is a manual door, so there is no guarantee that critters will not get in. However, the Endura Flap has incredibly strong magnets that are hard for small critters to push through and get in. |
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How do I measure my door to get the correct height adjustment size? Measure from the innermost part of the bottom track to the innermost top part of the track. If there is a pencil railing, include that in the measurement because the panel straddles the railing. |
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What do the Step Over Range dimensions mean? The step over is the part of the panel under the actual door opening. Depending on the flap size purchased, the stepover can range from 3"-7". This means that you can adjust it to any stepover within that range. So if you have a puppy, you can keep adjusting it as he/she grows. |
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Will there be enough room for me to get through after the panel is installed? That depends on how wide your sliding glass door opens and how wide the panel you purchase is. Those dimensions can be found under the "Overall Panel Width" column. |
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Can an intruder remove the Endura Flap dog door for slider from the outside? No, the thumbscrews are on the inside of the panel, so once installed, the Endura Flap Panel cannot be lifted out and removed without first loosening the thumbscrews from inside the home. |
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What locking mechanism can I use for the Thermo Panel 3e? You'll install the included clamp lock. Alternatively, the Endura dog door/cat door for sliding glass door can be secured with a Charley Bar for added security. |
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Does the Endura Flap dog door sliding door come with locking covers for security? Yes, these dog doors come with locking covers to ensure safety for your pet and home. Endura Flaps have locking covers that slide over them on the side facing inside your home and are made of sturdy, heavy-duty ABS plastic. Unfortunately, they cannot be used on the outside of Endura Flap Panels as an alternative. |
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Do the Endura Flap panels require tools for installation? All panel sizes will require a flathead screwdriver for the height adjustment locks. Panels that ship in two pieces (sectionals) will need to be assembled with 4 hex screws and a hex wrench, all of which are provided for sectionals. The following panels ship in one piece: Panels under 80 ¼" with a Small, Medium, or Large flap. The following panels ship in two pieces: Panels over 80 ¼" with a Small, Medium, Large, or Extra-Large flap and panels under 80 ¼" with an Extra-Large flap. Shipping a tall and/or wide panel in two pieces saves customers on shipping costs since it can be shipped in a smaller box. |
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Is this door good in a cold winter climate? I want something effective in our winter months. Yes, the Endura Flap has been tested in -4°F. |
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My sliding door track has a triangular guide rail. Will this pet door still work? Some sliding glass door tracks have a triangle-shaped guide rail instead of a cylindrical pencil rail running along the middle. This pet door panel has an arch along the bottom that is designed to sit on top of a cylindrical pencil rail. Pencil rails are shorter in height than triangular guide rails, which means that the pet door panel would wobble on top of it rather than sitting flush with the rest of the track. To accommodate the pet door panel you will need to build up the sides of the triangular guide rail so that the tip is less than ¼” tall. Please reach out to customer service if you have any questions about this process. |
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Will this panel work if my sliding glass door has a buried track? Some sliding glass doors have buried tracks. Since this panel has an arch along the bottom that is designed to sit on top of a pencil rail, it will not be secure in a slider with a buried track without modifications. We recommend securing the panel to the track wall with L brackets or toenailing it to the track wall. Toenailing is the process of fastening the panel to the track by driving a nail at roughly a 45-degree angle into the panel and through the track wall. Please note that these modifications result in a semi-permanent installation. If you needed to remove the panel in the future you would first have to remove the L brackets or nails. Additionally, please note that this process would leave holes in the pet door panel and it would no longer be returnable. Please reach out to customer service to further discuss your options for a buried track. |
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I have a hurricane patio door. Will this pet door work for me? Hurricane door track styles vary widely, so they are case-by-case. Please reach out to customer service to discuss your pet door options for your sliding door. |
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Will this pet door work with Anderson and Pella sliding doors? Anderson and Pella sliding glass doors have an inner track wall but no outer track wall. Additionally, the pencil rail is on the outer edge of the track rather than in the middle. Since this pet door panel is designed to sit between two track walls and on top of a centered pencil rail, it cannot be installed in Anderson or Pella doors without modifications. We recommend building out your track and using L brackets or toenailing to secure the bottom of the panel to the inner track wall. Building out the track means adding a piece of wood or vinyl that is the same height as the pencil rail to the space next to the pencil rail. This creates a flat surface for the pet door panel to sit on. Next, you will need to secure the panel to the track wall. To do this, you can use L brackets or you can toenail the panel into the track wall. Toenailing is the process of fastening the panel to the track by driving a nail at roughly a 45-degree angle into the panel and through the track wall. Please note that these modifications result in a semi-permanent installation. If you needed to remove the panel in the future you would first have to remove the L brackets or nails. Additionally, please note that this process would leave holes in the pet door panel and it would no longer be returnable. Please reach out to customer service to further discuss this process or different options for an Anderson or Pella sliding door. |
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How much does shipping cost? Shipping is calculated at checkout. |
Warranty
Warranty Type: Lifetime
Duration: Lifetime of the product.
Coverage: Defects in materials and workmanship under standard regular use.
Exclusions:
Damage caused by misuse or not using the product as intended.
Improper installation.
Damage caused by chewing.
Customer Reviews
Size Chart
- Small 6"w x 11"h
- Medium 8"w x 15"h
- Large 10"w x 19"h
- Extra Large 12"w x 23"h
Flap Dimensions:
6"w x 11"h
The entry way your dog goes through.Overall Panel Width
10 3/16"
How wide your panel is. Step-Over Height
3” - 5”
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
8"w x 15"h
The entry way your dog goes through.Overall Panel Width
12 1/4"
How wide your panel is. Step-Over Height
3” - 5”
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
10"w x 19"h
The entry way your dog goes through.Overall Panel Width
14 1/4"
How wide your panel is. Step-Over Height
3” - 7”
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
12"w x 23"h
The entry way your dog goes through.Overall Panel Width
16 5/16”
How wide your panel is. Step-Over Height
3” - 7”
The distance from the bottom of the panel to the bottom of your flap.| Flap Size | Flap Dimension | Step Over Range | Overall Panel Width | Recommended Pet Height |
|---|---|---|---|---|
| Small | 6" w x 11" h | 3" - 5" | 10-3/16" | 9" - 15" |
| Medium | 8" w x 15" h | 3" - 5" | 12-1/4" | 9" - 21" |
| Large | 10" w x 19" h | 3" - 7" (ships at 5") | 14-1/4" | 9" - 27" |
| Extra Large | 12" w x 23" h | 3" - 7" (ships at 5") | 16-5/16" | 9" - 34" |
Here is a measurement guide to help you out. Wondering how to measure your track? Review our Track Measuring Guide.
Track Height Adjustment range is based on the measurement of your door height from the lowest point of your track to the highest point. Each Custom Endura Flap Thermo Panel 3e has a 3" adjustment range with your window track height approximately in the middle. T
Custom Height Minimum & Maximum Heights:
| Model | Minimum | Maximum |
|---|---|---|
| Small | 35" | 120" |
| Medium | 42" | 124" |
| Large | 48" | 130" |
| Extra Large | 46" | 134" |
Choose the range that your track height falls into and when ordered you will be asked to give the exact height of your slider track inside very top to very bottom. In each case you will have 3" of height adjustment with the height you specify approximately in the middle of that range. The ranges are:
- Under 74 3⁄4"
- Between 80 1⁄4" – 93 1⁄4"
- Over 96 1⁄4"
Most sliding glass doors will accommodate the three-panel sizes offered. However, if our standard panels do not match your door size, we can build a custom Thermo Panel 3e for you. We can also custom make a panel for left-to-right sliding sash windows as long as the window track width is at least one inch. Custom height option may take up to 4 weeks to special order the glass and build the panel.
The panels have a 3-inch spring-loaded height adjustment, so if you request a 40" panel, the panel you receive will adjust from 38" to 41" inches. If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution.
Find The Best Pet Door Size For My Pet
A
Pet Height: inches
B
Pet Width: inches
Installation Instructions
Difficulty
Easy
Steps
06
Time Required
0.5 hours
Sections
02
Flags
02
Parts
- Panel Pet Door
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- Sliding Door C-Clamp Lock
- Screwdriver
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
One-Piece Panel
Step 1 Adjust the Step Over (Optional)
- The top of the flap should be positioned to be at least 1” above the top of the pet’s shoulder.
- If the factory setting is not suitable, please adjust it before proceeding. If the current setting is suitable, proceed to the “Installation Instructions” section.
Step 2 Adjust the Screws
- Lay the entire panel on a flat surface.
- Using a #2 flat head screwdriver, remove the bottom side-screws and loosen the upper side-screws. Screws were tightly installed to hold the panel together during shipping; a power tool* is recommended.
Step 3 Adjust the Spacers
- Once the bottom screws have been removed and the upper side-screws loosened, the Pet Door Assembly and spacers can be removed by sliding the sections down and out of the panel.
Step 4 Replace the Spacers
- Replace the spacers and the Pet Door Assembly by sliding them back in a different order to achieve the desired height. You can move the spacer below and above the flap to raise or lower the flap height.
Step 5 Tighten the Screws
- When finished, replace the bottom side-screws and tighten the next upper-side screws.
Step 6 Unlock Spring Mechanism
- Loosen the height adjustment locks at the top of the pet panel with the screwdriver. This allows the spring mechanism to move freely up and down.
Step 7 Test Fit the Panel in Your Track
- To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold.
- Seat the panel on top of the small guide rail in the track.
Step 8 Apply the Weatherstripping
- Once you’re sure the panel fits, remove it from the frame and lay it on its side on the ground.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive.
- Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim it fit with scissors.
Step 9 Install the Draft Stopper
- The center post weather seal strip (draft stopper) should be installed on the inside of the home.
- Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
- Repeat step two to install the panel in your track.
Difficulty
Easy
Steps
06
Time Required
0.5 hours
Sections
03
Flags
02
Parts
- Top Glass Panel Section
- Bottom Flap Section
- Foam Weather Strip
- Center Post Weather Seal Draft Stopper
- 4 Flathead Screws
- Flathead Screwdriver
- Screwdriver for Adjustment Locks
- Sliding Door C-Clamp Lock
Tools
- Flathead Screwdriver
Please read instructions & notes thoroughly before installation.
Two-Piece Panel
Step 1 Adjust Step Over Height (Optional)
- The top of the flap should be positioned to be at least 1” above the top of the pet’s shoulder.
- If the factory setting is not suitable, please adjust it before proceeding. If the current setting is suitable, proceed to the “Installation Instructions” section.
Step 2 Rearrange the Pieces (Optional)
- Simply slide the pieces up and out from the bottom half of your panel to rearrange.
- Loosen a bottom screw if the pieces are too snug to move.
Step 3 Reconnect the Pieces (Optional)
- Replace the spacers and the Pet Door Assembly by sliding them back in a different order to achieve the desired height.
- You can move the spacer below or above the flap to raise or lower the flap height.
Step 4 Screw the Pieces Together
- The order of the pieces is important! The piece on the bottom needs to always be at the bottom, as that is where the screws attach. You can now assemble the patio panel!
Step 5 Align the Connectors
- Remove the 2 flat head sectional connector screws from the exposed part of the connector on each side.
- Align the aluminum connectors extending from the bottom flap panel section with the top glass panel section.
- Press the aluminum connectors into the holes at the bottom of the top glass panel section.
- Ensure locking cover & height adjustment locks are on the same side!
Step 6 Tap the Pieces Together
- Gently tap the bottom surface of the panel against the ground to completely insert the connectors.
- Protect hard surfaces to prevent scratching.
- The components of the panel are designed to slide together very tightly.
Step 7 Secure the Sections
- Fasten the two panels together using the four flathead screws.
- Use the included flathead screwdriver to tighten all four flathead screws so the two halves of the door are pulled together.
Step 8 Adjust Spring Mechanism
- Loosen the height adjustment locks at the top of the pet panel. This allows the spring mechanism to move freely up and down.
Step 9 Test Fit the Panel in Your Track
- To insert the panel into the top track, push up against the spring mechanism and swing the bottom of the panel up and over the threshold.
- Seat the panel on top of the small guide rail in the track.
Step 10 Apply the Weatherstripping
- Once you’re sure the panel fits, remove it from the frame and lay it on its side on the ground.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive.
- Unroll it along the edge of the panel, pressing to ensure it adheres. Install on both sides, trim it fit with scissors.
- Repeat step two to install the panel in your track.
Step 11 Install the Draft Stopper
- The center post weather seal strip (draft stopper) should be installed on the inside of the home.
- Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
Adjusting Stepover Height
Lock Details
Since you cannot lock your sliding door to your panel pet door, we have provided you with alternative locking methods to secure your home:
Installing the sliding door clamp: This clamp has a screw that tightens by hand to prevent the sliding door from moving beyond the clamp’s placement. For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.
If you aren’t able to use the lock that comes with the panel: A great alternative to locking your sliding glass door is a Charley bar or dowel in the track. Both work off the same concept – they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
Other Installation Options
Semi-Permanent Installation:
You might choose to secure the panel in your track with screws. This can be done by drilling screws at an angle in the top and bottom tracks. We recommend doing this from the outside to minimize damage to the sliding glass door frame. One-way screws will prevent tampering or removal of the panel from the outside.
Stationary Panel:
Some stationary sliding door panels can be unfastened and moved over to one side so that you can install the pet door panel between the jamb and stationary panel.
Avoid damaging your sliding glass door by checking that your door can move and that you can reinstall it properly before trying to uninstall the unit.
You will still lose space in your slider to move through, however, you will be able to use your existing sliding door lock to secure your home. Installing your pet door this way is also great in that you already have an alarm system in place.
If your sliding glass door slides on the outside track, using an alternative lock might not be possible, so this allows you to still lock your door.
NOTE: You can do the stationary panel install with the regular spring actuator method – no need to screw it in.
Videos
ENDURA FLAP® PET DOORS: Endura Dog Door Impact Test
How to Measure Your Sliding Glass Door for a Pet Door
How to Adjust the Magnet Strength on Your Endura Flap
How to Adjust Your Stepover
FAQ
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What is the thickness of the panel? The patio pacific endura flap thermo panel 3e is 1" thick. It is only thick enough for a single flap, not a double flap. |
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Does this panel work with vinyl sliders? Yes, the endura flap 3e is compatible with most vinyl sliding patio doors for a vinyl-pet slider that matches your existing track. At 1" thick, it is thicker than most aluminum panels, so it will fit better in a vinyl track. The track width may not line up exactly with the panel, but it is only an issue with the aesthetics, not functionality. |
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Does this keep mice, rats, and other pests out? This is a manual door, so there is no guarantee that critters will not get in. However, the Endura Flap has incredibly strong magnets that are hard for small critters to push through and get in. |
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How do I measure my door to get the correct height adjustment size? Measure from the innermost part of the bottom track to the innermost top part of the track. If there is a pencil railing, include that in the measurement because the panel straddles the railing. |
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What do the Step Over Range dimensions mean? The step over is the part of the panel under the actual door opening. Depending on the flap size purchased, the stepover can range from 3"-7". This means that you can adjust it to any stepover within that range. So if you have a puppy, you can keep adjusting it as he/she grows. |
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Will there be enough room for me to get through after the panel is installed? That depends on how wide your sliding glass door opens and how wide the panel you purchase is. Those dimensions can be found under the "Overall Panel Width" column. |
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Can an intruder remove the Endura Flap dog door for slider from the outside? No, the thumbscrews are on the inside of the panel, so once installed, the Endura Flap Panel cannot be lifted out and removed without first loosening the thumbscrews from inside the home. |
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What locking mechanism can I use for the Thermo Panel 3e? You'll install the included clamp lock. Alternatively, the Endura dog door/cat door for sliding glass door can be secured with a Charley Bar for added security. |
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Does the Endura Flap dog door sliding door come with locking covers for security? Yes, these dog doors come with locking covers to ensure safety for your pet and home. Endura Flaps have locking covers that slide over them on the side facing inside your home and are made of sturdy, heavy-duty ABS plastic. Unfortunately, they cannot be used on the outside of Endura Flap Panels as an alternative. |
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Do the Endura Flap panels require tools for installation? All panel sizes will require a flathead screwdriver for the height adjustment locks. Panels that ship in two pieces (sectionals) will need to be assembled with 4 hex screws and a hex wrench, all of which are provided for sectionals. The following panels ship in one piece: Panels under 80 ¼" with a Small, Medium, or Large flap. The following panels ship in two pieces: Panels over 80 ¼" with a Small, Medium, Large, or Extra-Large flap and panels under 80 ¼" with an Extra-Large flap. Shipping a tall and/or wide panel in two pieces saves customers on shipping costs since it can be shipped in a smaller box. |
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Is this door good in a cold winter climate? I want something effective in our winter months. Yes, the Endura Flap has been tested in -4°F. |
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My sliding door track has a triangular guide rail. Will this pet door still work? Some sliding glass door tracks have a triangle-shaped guide rail instead of a cylindrical pencil rail running along the middle. This pet door panel has an arch along the bottom that is designed to sit on top of a cylindrical pencil rail. Pencil rails are shorter in height than triangular guide rails, which means that the pet door panel would wobble on top of it rather than sitting flush with the rest of the track. To accommodate the pet door panel you will need to build up the sides of the triangular guide rail so that the tip is less than ¼” tall. Please reach out to customer service if you have any questions about this process. |
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Will this panel work if my sliding glass door has a buried track? Some sliding glass doors have buried tracks. Since this panel has an arch along the bottom that is designed to sit on top of a pencil rail, it will not be secure in a slider with a buried track without modifications. We recommend securing the panel to the track wall with L brackets or toenailing it to the track wall. Toenailing is the process of fastening the panel to the track by driving a nail at roughly a 45-degree angle into the panel and through the track wall. Please note that these modifications result in a semi-permanent installation. If you needed to remove the panel in the future you would first have to remove the L brackets or nails. Additionally, please note that this process would leave holes in the pet door panel and it would no longer be returnable. Please reach out to customer service to further discuss your options for a buried track. |
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I have a hurricane patio door. Will this pet door work for me? Hurricane door track styles vary widely, so they are case-by-case. Please reach out to customer service to discuss your pet door options for your sliding door. |
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Will this pet door work with Anderson and Pella sliding doors? Anderson and Pella sliding glass doors have an inner track wall but no outer track wall. Additionally, the pencil rail is on the outer edge of the track rather than in the middle. Since this pet door panel is designed to sit between two track walls and on top of a centered pencil rail, it cannot be installed in Anderson or Pella doors without modifications. We recommend building out your track and using L brackets or toenailing to secure the bottom of the panel to the inner track wall. Building out the track means adding a piece of wood or vinyl that is the same height as the pencil rail to the space next to the pencil rail. This creates a flat surface for the pet door panel to sit on. Next, you will need to secure the panel to the track wall. To do this, you can use L brackets or you can toenail the panel into the track wall. Toenailing is the process of fastening the panel to the track by driving a nail at roughly a 45-degree angle into the panel and through the track wall. Please note that these modifications result in a semi-permanent installation. If you needed to remove the panel in the future you would first have to remove the L brackets or nails. Additionally, please note that this process would leave holes in the pet door panel and it would no longer be returnable. Please reach out to customer service to further discuss this process or different options for an Anderson or Pella sliding door. |
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How much does shipping cost? Shipping is calculated at checkout. |
Warranty
Warranty Type: Lifetime
Duration: Lifetime of the product.
Coverage: Defects in materials and workmanship under standard regular use.
Exclusions:
Damage caused by misuse or not using the product as intended.
Improper installation.
Damage caused by chewing.
