The Quick Fit Pet Doors have a flap that attaches to the frame using mounting screws and nuts that screw into a metal bar. The screws are removed and the new flap is screwed into the frame.
|Door Size & SKU||Replacement Flap Size & SKU|
|Small (P2-SW-11)||Small Quick Fit Flap (RFA-104-11)|
|Medium (P2-MW-11)||Medium Quick Fit Flap (RFA-103-11)|
|Large (P2-LW-11)||Large Quick Fit Flap (RFA-102-11)|