https://malloy-mcintyre-2.blog....bright.net/cat-flap-
This cat flap is insulated and features a double-flap design and provides a high level of protection for different climates. It can be installed in wood, uPVC and glass doors. It is essential to have a door that is sealed well, especially in cold weather. It can prevent warm air from being sucked away and cold air getting in and causing you to pay more energy costs. Wind Resistance By preventing cold air from entering your home and keeping warm air in the cat flap, it keeps it warm