Plastic Lock-Out Slide To Keep Pet In Or Out. Designed for use with our Ruff Weather Pet Door, Ruff Weather Alarm Alert Pet Door, Insulator Pet Door and 900 Series Pet Patio Door.
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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Order an extra slide
Your gonna want two slides, one on the inside for security and one on the outside as a weather guard and to help prevent fading of your vinyl flap.
