2021 Upgraded Dog Door,Pet Door for Dogs and Cats,Doggie Door for Exterior Doors,Durable Pet Doors with Aluminum Lining…

Amazon.com Price: $31.97 (as of 01/30/2023 07:52 PST- Details) & FREE Shipping.

SIZE: Medium: External size: 10.6”(W) x 12.9”(H), Internal size:9.2”(W) x 11”(H),suitable for installation on doors, and wooden walls or any wall or door that is up to 50mm thick, Recommended Door Thickness: 1 1/4″ to 2″; Flap Size: 7”-11.5”; For Dogs & Pets Up To 60 LBS: suitable for cats lighter than 27 Lb and waist circumference less than 23″.
White Plastic & Aluminum Lining: Made of ABS plastic, waterproof , the surface is smooth and durable;Low-maintenance, weatherproof pet flap with inner telescoping frame.
Soft Flexible Flap With Magnetic Closure: Transparent flap preferred by most pets, draft and rainproof brush sealed flap with closure. Brush strip to reduce energy loss and noise, ensure that neither the pets nor the owner will be disturbed.The Flap Will Not Warp Over Time Or Under Extreme Temperatures.