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This cat flap is insulated and comes with a double-flap mechanism and provides a high level of protection for different climates. It can be fitted in wood, uPVC, glass, and metal doors. A tightly sealed door is essential, especially in cold weather. It keeps warm air from being sucked away and cold air from entering and causing energy costs. Wind Resistance Covering your cat's flap for winter will help keep your home warmer by preventing cold air from entering and allowing warm air inside. The best options are those that