This cat flap is insulated and features a double-flap design and offers a good level of protection in various climates. It can be used in wood, uPVC and glass doors. It is essential to have a door that is sealed well, especially in cold weather. It prevents warm air from https://catflaps88098.blogacep.com/35990528/installing-a-cat-flap-in-a-upvc-door-cost