Suggested Retail: $18.99. Dog/pet Door Replacement Flap Compatible with PetSafe Measures 16 7/8 x 10 1/8 PAC11-11039 Large - This replacement flap is designed for large size pets with a flap opening of 10 1/8 in x 16 7/8 in. It has 5 adjustment holes on the top making it perfectly compatible with your pet door. It is easy to install and only requires a screwdriver. The flap is soft, durable, and suitable for extreme weather conditions. It is compatible with various types of pet doors including in-wall, sliding glass, terrace panel, and aluminum, providing effective protection for pets. The flap is also weather-resistant with a magnetic closure device that reduces noise and protects your home from outdoor weather. Brand: AMZOO Model: PAC11-11039 -- LOT STICKER: BB-BOX-BOXBB001760-ITEM-644d1c0c___LPNPMBZ5252074 AMZOO Dogpet Door Replacement Flap Compatible with PetSafe Measures 16 78 x 10 18 PAC1111039 -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.