Tunnel Length Options for Hale Pet Door for Walls Tunnel Depth:2" - 16" Custom Tunnel 75" tall for the perfect

75" tall for the perfect fit

so you will need enough tunnel sections to match the remaining thickness of your wall (they can be trimmed down)

Installs easily onto existing door or window screen

the Cat Mate 360 Microchip Cat Flap is a simple

Example Calculation:

Tunnel Length Options for Hale Pet Door for Walls Tunnel Depth:2" - 16" Custom Tunnel 75" tall for the perfectTunnel length options for the Hale Pet Doors for Walls Sturdy, extruded aluminum framing available in two size options to fit any wall Self framing and self supporting Energy efficient design that can withstand extreme weather conditions The Hale Pet Doors for Walls are high quality pet doors that are built to last. The door features a clear flap lined with fuzzy weatherstripping and adjustable magnets that create an airtight seal. The Hale dog doors