Plexidor Cat Doors for Doors
There's no need to settle when it comes to your convenience, and your cat's comfort. The Plexidor Cat Door is a high quality, self-framing cat door designed to be installed in hollow or solid core doors (0 to a maximum thickness of 1 3/4").
The flap, mounted on springs, opens from the side much like a regular door. The clear, rigid acrylic flap is relatively easy to push, and because it's hollow tends perform better insulation wise. They are also surrounded by a fuzzy nylon weather stripping to top it off. This makes the Plexidor easier for your cat to use, while not sacrificing your energy bills.
A built in 4-way locking device allows you to control access for your cat, and eliminates the need for a separate locking cover.