PetSafe Freedom Pet Door

Freedom for your pets and relaxation for you – they will no longer need to wait patiently or scratch at the door to be let out. Secure with locking panel when you're away. Soft, transparent single flap with magnetic bottom strip ensures a weather-shedding seal. White-painted aluminum frame. Fits 3⁄8"- to 2"-thick doors.

Available:

Small (9-3/4"W x 13-1/2"H frame, 5-1/8"W x 7-5/8"H flap),

Medium (10-3/4"W x 15-5/8"H frame, 8-7/8"W x 13-3/4"H flap),

Large (14-3/4"W x 21-1/2"H frame, 10-1/8"W x 15-3/4"H flap),

XL (16-3/8"W x 27-1/4"H frame, 13-5/8"W x 23"H flap).