Ideal Replacement Flaps for "Original" and "Deluxe" Not Made in USA Motorized flap lifts quietly for

Motorized flap lifts quietly for pets wearing the MS-4 ultrasonic collar key

Holds up to dogs that run at the door full speed

For more on how to install a cat door replacement flap

This custom-made design allows you to swap out the existing glass in your slider for a new glass sliding patio door with a doggy door built-in

Ideal Replacement Flaps for "Original" and "Deluxe" Not Made in USA Motorized flap lifts quietly forPerfect Pet Dog Door flap replacement for Original, Deluxe, Fast Fit, Fast Sash, and Modular Pet Doors Original Pet Doors have a plastic frame Deluxe Pet Doors have a metal frame Round and rectangular logos have differences in configuration and are not interchangeable All flaps are made from clear, flexible vinyl These Ideal pet door replacement flaps work for the Original, Deluxe, Fast Fit, Fast Sash, and Modular pet doors. If you're purchasing a