
Armor Flex and DuraFlex Wall Tunnels
Telescoping aluminum tunnel sections matched by door family and opening size.
Add to bagFrom $85
A training flap is available if your pet needs assistance in getting used to using the pet door. A training flap is made of a similar material to our regular flap but has no strikes and has been vertically slashed…
Configured pet doors are built to order. Verify size, installation type and selections before submitting your order.

Match the part to the original door model, size and frame family before ordering a replacement.
If the installed door is older or unlabeled, compare photos and dimensions before adding the part to your bag.
Replacement parts work best when the part, door model and size are all matched together.
Standard selections use the exact retail SKU. Custom sizes inside the published specials table map to the applicable pricing tier. Larger custom doors scale the selected Giant configuration by area using the displayed oversized custom pricing rule.
Yes. Enter 45 x 50, choose whether that describes the flap, rough opening or overall frame, and the configurator will calculate the corresponding dimensions and oversized custom price. Production feasibility is confirmed before payment.
Verify whether your dimensions describe the flap, rough opening or overall frame; then confirm pet dimensions, selected model, construction, frame clearance and the model-specific installation instructions. In-glass products require a professional glass installer.

Telescoping aluminum tunnel sections matched by door family and opening size.
Add to bagFrom $85
Compatible part for keeping an existing pet-door setup working cleanly.
Add to bagFrom $8
Compatible part for keeping an existing pet-door setup working cleanly.
Add to bagFrom $125