Pet Doors for Doors
Americans finest Pet Doors that are built to last. They come in four different sizes with single flap or double flap.

Click on image above to see sizes and price

Features:
New extreme performance flap - most highly engineered pet door flap ever made. It seals, it insulates and it will last forever.
High Aspect Ratio' design - Higher but not as wide. Much easier to fit your pet.
Beefy Aluminum framing - with completely hidden hardware. No more flimsy frames with bolts showing all over.
Provision to add magnets - to increase the already significant wind resistance. The positive magnetic seal runs the full height of the flap already.
"Green" Flap Material - safe for the environment unlike vinyl.
Sturdy Locking Cover - locks pets in or out. Easy to use clip lock is better than the old spring-loaded pin locks.
Four Sizes - from #6 for cats and small dogs to the #12 for very big dogs.