My dogs tear through the dog door and after a few years there is only about half a flap. So grateful I don't have to replace the entire door when only the flap is worn.

I bought the LG. Extreme dog door w/3 flaps.all two flaps wouldnt hang right from start. Let lots of air by. The magnet was weak. A few months after installing the corners were shot and more air comes in.I have small wild animals come in if the discover it. I continued using it because my money is so tight. And on top of that I can't find a 3 flap replacement kit.

I bought my door 13 to 15 yrs ago. I am just now replacing the flap. I’m in northern Ohio hot to frigid. In that time I have had 5 50 plus lb. dogs (4 labs 1 Aussie) and 15 plus kitties and one pigmy goat who stuck his head through regularly. The goat and dogs were too large for the door!! The used it anyway. The Aussie still uses it leaving fur on ALL SIDES as she squeezes her ample girth through the medium size opening. She’s a big 67 pound girl and a 14 years old I’m not going to punish her for losing her girlish figure this late in the game. Rex my 110 lb chocolate lab (GRHS) and Matilda (Aussie) both stick their heads out the door with their bodies in the house and just lay there! Trolls. To the point and to inform new buyers, this little door has taken more abuse and use than any door should ever have taken! As to bad reviews I might suggest improper installation or misuse! Maybe people just can’t be satisfied or feel the need to complain in hopes of receiving a refund. As for this customer, wow this is a great product! Buy it and if you have issues with installing it, have someone do it for you, you’ll be glad you did.

Perfect fit. Kind of hard to install. Best if two people work together.