SureFlap Dog & Cat Door Tunnel Extender

• Designed to be used with the SureFlap Microchip Small Dog & Cat Door when it’s installed in a wall.
• Allows you to build an easy-to-access tunnel for your pet to walk up to the door flap.
• Fits snugly into the 2 ¾ tunnel of the pet door and each extender adds 2 inches to the overall tunnel length of the SureFlap Microchip Small Dog & Cat Door.
• You can use multiple extenders to make a custom-length tunnel depending on your wall thickness.
• Comes in two colors so you can choose the one that fits your home’s style.

For wall installations, tunnel extenders can be stacked together to create a longer approach tunnel to the SureFlap Microchip Pet Door when it is installed in a wall.