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The Cat Flap Tunnel Extender fits snugly onto the tunnel of our microchip cat flaps and multiple extenders can be stacked together to form a tunnel of any length.
The tunnel of our microchip cat flaps are 70mm (2.75") long and each tunnel extender adds 50mm (2") to the length of the cat flap’s tunnel. Click on the link below to calculate the number of cat flap tunnel extenders you require to fit the depth of your wall.
Learn how to install our microchip cat flaps in a wall using the Installation Guides.
