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Sureflap White Tunnel Extension
- Dc Door Type
- Dc Housing Type
- Doors & Gates
- Cat Door Tunnel Extenders can be used to create a longer approach tunnel to the SureFlap Microchip Cat Door or the DualScan Microchip Cat Door when it is installed in a wall. Cat Door Tunnel Extenders fits snugly onto the tunnel of our microchip cat doors and multiple extenders can be stacked together to form a tunnel of any length. The tunnel of our microchip cat doors are 70mm long and each tunnel extender adds 50mm to the length of the cat door's tunnel. Click on the link below to calculate the number of tunnel extenders you require to fit the depth of your wall.