Install your Power Pet pet door with the Aluminum Pet Wall Tunnel from High Tech Pet Products. It works on any exterior wall and includes everything you need for easy installation. This tunnel is made of high strength aluminum and provides a weatherproof, professional-looking installation. Give your furry friend more access with the High Tech Pet Products Power Flex Aluminum Pet Wall Tunnel. There are 2 Sizes: Medium (AW-PX1) goes with the Medium PX-1 Power Pet Door and Large (AW-PX2) goes with the Large PX-2 Power Pet Door.
Wall Tunnels can be telescoped together to fit larger depth installations.
Medium: 8.81" W x 11.13" H
Large: 12.88" W x 17.25" H