Cat Mate Cat Door Using 4-Way Locking Cat Flap and Wall Kit
This cat door uses a Cat Mate Elite 307 4-Way Locking Cat Door together with wall liners to allow installation in a wall of any thickness. The Cat Mate Elite 307 is one of three "Elite" Cat Flaps introduced by Cat Mate. The other two, the "Selective" and the "Super Selective" are electronic cat flaps.
Each liner adds 2" to the tunnel length and the cat door itself provides the final 0"-2" of length to ensure a tight fit.