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Johnson replacement flaps were originally manufactured
by
Johnson Pet Dor company. Here's some
historical information
that you may find useful in identifying your Johnson flap.
Johnson flaps
are two piece construction: a center flap with U-shaped 'gasket'
piece both constructed of clear, tinted, flexible vinyl. Tinting has varied
in density over the years. This design, which was apparently intended to
seal well, has led to some confusion on the part of customers attempting to
replace their flaps. Some measure inside (the opening available to the pet)
and others measure the full outside dimension.
What is presented below is "Inside" the U-shaped piece.
Focus on the width as that is the easiest to measure accurately.
Magnets are embedded in the flap corresponding to
iron 'keepers' glued to the aluminum or plastic frame. Neither the
magnets or the keepers are available separately.
Johnson sizes have size notations, S-2,
M-2, L-2 or XL-4, embossed on the flap. We have seen some
exceptions to this, however. Some flaps have nothing on them.
Since PetSafe bought the Johnson Pet Door
company, they now package these flaps labeled "PetSafe". Don't be
confused; it's the same flap.
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