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The SureFlap Pet Door Tunnel Extender fits snugly onto the tunnel of the SureFlap Microchip Pet Door and multiple extenders can be stacked together to form a tunnel of any length.
The SureFlap Microchip Pet Door’s tunnel is 70mm (2.75”) long and each tunnel extender adds 50mm (2“) to the length of the pet door’s tunnel.
Learn how to install the SureFlap Microchip Cat Flap in a wall using the Installation Guides.
Available in white or brown to match your pet door.