The PetSafe Microchip Cat Door Tunnel Extension allows the PetSafe Microchip Cat Door to be installed into thicker doors or walls, adding 2" to the overall depth with each tunnel. Adding the tunnel is simple, with no tools required, and each extension can be secured in place with glue for a flush, precise fit. Multiple tunnels can be used in order to fit the needed door or wall thickness.

PetSafe Microchip Cat Door Tunnel Extension Features:

• Easy Installation – Simply glue the extension in place to add 2" to the tunnel of your Microchip Cat Door; no tools required
• Thicker Walls/Doors – The Microchip Cat Door Tunnel Extension provides a flush and precise fit for thicker doors and walls; multiple tunnels can be used in order to fit the needed thickness
• Compatibility – The PetSafe Microchip Tunnel Extension is specifically designed for the PetSafe Microchip Cat Door