PetSafe Tunnel Extension for Cat Flap Brown

Is your door or wall too thick for your cat flap? This tunnel extension 330 with an extra depth of 48mm (1 7/8") is a great way to extend your cat flap for particularly thick doors and walls. Add single or multiple tunnel extensions for your cat’s ease! This tunnel extension was formerly known as the original tunnel extension. It is compatible with the cat flaps Deluxe 300, 400, and 500 series.