Set of 7 Screws (Old Style) Super Large
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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SCREW HEADS are TOO SMALL for the holes in the NEW flap!
The heads of the 7 screws are TOO SMALL - they literally fall through & entirely "bypass" the top holes in the new door flap I purchased. When I tried to screw them in to properly attach the flap to the (also) new top bar I purchased - they all fell through the holes, during the mounting process. I had to go to the hardware store to buy larger-than-the-screw-head washers. When I attached a washer to each screw, then screwed the screws in firmly, at least the washers covered the hole well-enough to obtain a "secure mounting' of the new flap. Please Call Us Toll Free at: 1-800-378-4385 Hours : Monday – Friday 8AM – 4PM PST (excluding weekends & holidays) and allow us to resolve the problem.
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Best Dog Door
Please don't stop having the Old Style Flap, Bar, and Screws available.