The most important new feature of the Thermo Sash II is the incorporation of a spring-load, 'no-tools' installation feature with a 3" adjustment range. You simply place the spring loaded end into the window track, press against the spring to position the other end in the opposite track and tighten two thumb screws with your fingers (to prevent removal by someone from outside).

The smaller size, Small/Medium in both regular and electronic, uses acrylic flaps with built-in locks. The larger regular sizes, medium through large, use a separate locking cover which slides down a slot on the panel frame. These locking covers utilize a spring-loaded dead bolt lock to engage the frame and lock tightly shut. Remember that they will need enough clearance directly above the pet door to be removed and inserted. Also remember that your window track must be at least 1" wide to accept the pet door framing.

The Small/Medium unit incorporates a '4-way' locking mechanism. For example, if you want the pets in at night, you might set the pet door for 'in-only' in the late afternoon.

Thermo Sash II Pet Door for Sash Windows

- Features -

New! 'No Tools' Installation identical to the popular Thermo Panel IIIe. Great choice for newer vinyl clad sliding glass door frames because drilling holes is not necessary.

New! Self-adjusting mechanism allows temporary or semi-permanent installation.
New! Built in "anti-whoops" allows for ³/₄" increase or decrease in adjustment range to help solve measuring error problems.
2 year manufacturer's warranty
Dual pane, insulated glass unit for best performance

Sizes for any pet:
      Small/Medium
      Electronic Small/Medium
      Medium
      Large
      X Large - (to be discontinued; only a few remaining)
Adjustment ranges for window tracks from 18" wide to 51" wide (minimum dimension varies with flap size).
Choice of three frame colors:
      Satin (aluminum)
      White
      Bronze (dark brown)

Here's what the Boston Herald Gift Guide thought of the Thermo Sash II:

Rating:

See the complete review here.

Note: Windows that slide sideways are actually "short" sliding glass doors! Please go to
'Is this for a sliding window?'
in the panel pet door faq section for more information.

Thermo Sash II Pet Door

Installed in a Window
(Original Thermo Sash Shown)

**Thermo Sash II Selection Table**
Size & Stock Number	Flap Size & Type	Window Widths* Accommodated	Height to Raise Window	Price	Buy
Regular Models
Small/Medium 07PPD02	7" x 7¹/₄" Rigid	21"-51"	13"	$194⁹⁹	Discontinued
Medium 07PPD03	8" x 11" Flexible	21"-51"	17 ¹/₂"	$239⁹⁹
Large 07PPD04	10" x 15" Flexible	21"-51"	22"	$269⁹⁹
Electronic Models^*** (As you would do with any new electronic device, please test your new electronic pet door to be certain that it operates successfully in the environment you have chosen for it prior to installation. )
Small/Medium Electronic 07PPD12 White Frame Only	7" x 7¹/₄" Rigid	18"-51"	14 ¹/₂"	$249⁹⁹	Discontinued
Frame Colors: S-Satin (aluminum) W-White B-Bronze (dark brown) Note:** Some small/medium and small/medium electronic white frame may have grey framing around the flap. Some size/color combinations have been discontinued.		Adjustment ranges vary generally from 18" to 51" in 3" increments. Each door has a 3" adjustment range. Window sizes 36" and wider are considered special order and may take three to four weeks for delivery if the required glass unit isn't in stock. Call to check. Note: Our glass supplier has changed equipment and can no longer make some of the shorter pieces needed for "A" and "B" ranges. As we use up existing glass stocks, these will become unavailable.		Frame color and adjustment range options are presented after you 'Buy Now'
Warranty		Replacement Flaps and Parts Small/Medium Size		Replacement Flaps and Parts Medium and Larger Sizes
* Some of the smaller widths result in the locking knobs interfering with the locking cover. In those cases, the locking cover is not included. Affected models are noted in the size/color drop-down after you 'Buy Now'. Bronze models have aluminum colored framing around the flap itself. The remainder of the framing will be bronze.^Small/Medium electronic doors come with two collar keys. Spare keys are available. Note that the Small/Medium size comes with collar keys intended for cats. Larger keys more suitable for small dogs are available at extra cost. ^*** As shown in the graphic, the pet door flap is mounted to the left end of the panel. It can be easily moved to the right end by the customer by removing and reinstalling the flap.
Thanks for following up. We had the thermo sash door installed and it is up and running. It's a great product, very well made, and the medium size is perfect for our two cocker spaniels. I enjoy doing business with you and have referred several friends and neighbors to your web site. Sincerely, Betsy B., Memphis, TN

Thermo Sash II

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Thermo Sash II Pet Door for Sash Windows

Thermo Sash II Selection Table