Over the years we've seen many pet doors come and go. Surprisingly few manufacturers actually put their name on their product. If you have a door and you don't know what it is, give us a call at (866) 377-3667. If we spend a few minutes on the phone we can usually tell you what it is and whether flaps are still available.
Some popular discontinued doors that flaps are no longer available for include:
Ideal Insulator Series
Pet Safe Classic
Pet Safe QuickFit
If you have one of these pet doors, you only have a few options, unfortunately. If it is a panel for a sliding glass door like the Pet 1, you will have to start over and replace the whole unit. If it is in a door or a wall, the options are to try to find another pet door which fits the existing hole. In order to check this you need to REMOVE THE PET DOOR and measure the size of the hole in the wall. The flap measurement and the frame measurement won't help. You need the size of the hole in the wall. Once you have the hole size you can see if something else matches exactly. Unlikely, but it does happen. The other option is to have a custom size pet door built to fit the hole in the wall. We can have the Hale door built to specs for both custom door and custom wall installations.