H-Section replacement knurled knob for both Round and Rectangular Aluminum Pet Patio Doors and Aluminum Sash Window Pet Doors. Sold individually.
To determine the correct size door, simply measure the width (A) and height (B) of your pet.
(A) Measure the widest point of your pet's shoulder.
(B) Measure from the top of your pet's back (just behind their head) to the bottom of chest.
Pet door models have different size openings. Just make sure your new pet door's opening is both wider and taller than your pet's measurements to ensure they can comfortably pass through.
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Perfect
The knob was perfect. and you were a huge help on installing it.
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Too expensive
Too expensive
