Magnetic 4-Way Locking Cat Flap Extension Tunnel
If your door or wall too deep for your cat flap, add single or multiple extensions for easier installation. The PetSafe® Cat Flap Extension Tunnel allows your cat door to be installed into thicker doors or walls and is compatible with the PetSafe® Manual 4-Way Locking Cat Flap. This extension tunnel measures (1 7/8″) deep. Trust PetSafe® to help keep your pet healthy, safe and happy.