Petsafe Staywell Classic Extension Tunnel - tunnel, extension for Staywell Classic Cat Flap

PetSafe Staywell Classic Extension Tunnel is a helpful element for installing the PetSafe Staywell Classic Cat Flap White in thick walls or doors. The tunnel should be placed in the opening between the inner and outer sides of the flap to ensure a secure, smooth finish for the space the pet moves through. You can add single or multiple extensions. One tunnel allows you to fill a door or wall with a thickness of 18mm.