SureFlap tunnel extenders can be used to create a longer approach tunnel to the SureFlap Microchip Cat Flap or the DualScan Microchip Cat Flap when it is installed in a wall.

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 (2¾") long and each tunnel extender adds 50mm (2") to the length of the cat flap’s tunnel.