Endura Pet Door - New! Extreme Performance 'Endura' flap - Tired of replacing worn out, leaking flaps? You owe it to yourself to investigate the Endura Flap pet door. It seals, it insulates and it will last forever! New! 'High Aspect Ratio' design: Much easier to fit your pet. Improves security for medium to large sized pets. Easier to share with a smaller pet. New! User-adjustable magnet strength: Optional Magnet kits allow the customer to increase wind resistance or reduce magnet pull for training. Each kit will contain 2 magnets (top and bottom) plus installation clip and instructions. Beefy aluminum framing with completely hidden hardware. No more flimsy frames with bolts showing all over. New! 'Green' flap material: Safe for the environment unlike vinyl (PVC) which is not. Self-Framing for all doors 1/2" - 1 3/4" 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. 100% Designed, Engineered and Manufactured in the USA. Available in Single or Dual Flaps Endura Pet Door - 6" X 11" Door Mount - Single Flap $169.00 Endura Pet Door - 6" X 10" Door Mount - Dual Flap $259.00 Endura Pet Door - 8" X 15" Door Mount - Single Flap $189.00 Endura Pet Door - 8" X 14" Door Mount - Dual Flap $289.00 Endura Pet Door - 10" X 19" Door Mount - Single Flap $219.00 Endura Pet Door - 10" X 18" Door Mount - Dual Flap $339.00 Endura Pet Door - 12" X 23" Door Mount - Single Flap $269.00 Endura Pet Door 12" X 22" Door Mount Dual Flap $419.00 Replacement Flap For 6" X 11" Endura Dog Door $42.50 Replacement Flap For 8" X 15" Endura Dog Door $49.98 Replacement Flap For 10" X 19" Endura Dog Door $59.95 Replacement Flap For 12" X 23" Endura Dog Door $84.00 Back To All Dog Door Catagories Endura dog door. Endura dog doors for through a wall or a door.