The SureFlap Microchip Door Tunnel Extender allows you to mount the door into thick walls including a home's interiror and exterior walls.

The extender fits into the tunnel of the microchip door, and you can even use multiple extenders in extra thck walls - just stack them together to form a tunnel of any length.

Two sizes available:
Small Cat Door Extender (for both the Dualscan and Standard microchip doors) - Adds 50mm to the existing cat door's 70mm tunnel. 
Large Pet Door Extender - Adds 50mm to the existing pet door's 70mm tunnel. 

Available in White or Brown

To calculate the number of tunnel extenders you will need, please refer to the chart in the images.

Specifications

Brand Sure Petcare
SKU LP11055
Category Doors
Type Replacement parts

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