PetSafe Microchip Cat Door Tunnel Extension, White

Adding the tunnel is simple, with no tools required, and each extension can be secured in to place with glue for a flush, precise fit. Multiple tunnels can be used in order to fit the needed door or wall thickness.Features: Easy Installation – Simply glue the extension in place to add 2 in. 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 Compatible with the Microchip Cat Door (PPA19-16145)