• Each individual wall liner adds 2" to the framing range of the pet door
• Fits Cat Mate model Cat Mate 221 Large Cat Door 
• Creates a waterproof tunnel between the door and the other side of the wall
• Available in white only, but can be painted if desired
• Makes the cut-out area appear clean and sleek

Looking to install a Cat Mate lockable cat flap in your wall? The 2" Cat Mate Wall Liners for Cat Mate 221 Doors (CP400W Large Pet Flap Wall Liner) are here to help! These liners frame out the wall where you plan to install your cat flap and create a tunnel within the interior of the wall.

Before purchasing your wall liners, it's important to measure the thickness of your wall to ensure a proper fit. Keep in mind that the Cat Mate doors themselves frame out 2" right out of the box. You'll need to purchase wall liners based on the remaining amount of wall thickness after the 2" cat door is accounted for.

For example, if your wall is 8" thick, you'll need to purchase three wall liners: 6" of additional liner and 2" of the pet door. And if your wall is 7" thick, you'll also need to purchase three additional wall liners, and trim down accordingly for a functional fit.

This product only works with Cat Mate Doors and is not compatible with other small cat doors.