SUPERIOR REPLACEMENT FLAP: Best Pet Flap is more weather resistant and environmentally friendly than the original PetSafe branded flap. MADE IN BRAZIL. XL REPLACEMENT DOG DOOR FLAP: Compatible with PetSafe Freedom Aluminum, Plastic, Wall Entry and Sliding Glass Doors with flaps measuring 13 1/8" x 24 7/8" ENVIRONMENTALLY FRIENDLY: Best Pet Flap is NOT Made with PVC and is BPA FREE thus more environmentally friendly and safer for you pet. LONGER LASTING: Made from technology used in the medical and food service industries, Best Pet Flap will outlast the original flap that came with your door. CHECK COMPATIBILITY: Original flap has product number PAC11-11040 - this flap features 6 mounting holes at the top and a single magnet bar on the bottom. QUICK & EASY INSTALLATION: Installs in just minutes with only a screwdriver. PLEASE NOTE: This product is produced by Best Pet Flap. We have no affiliation with or endorsement from any of the other manufacturers mentioned. Our replacement flap exceeds the quality of OEM product based on 3rd party testing.