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This cat flap is insulated and comes with a double-flap mechanism and offers a good amount of protection in various climates. It can be fitted in wood, uPVC, glass, and metal doors. A tightly sealed door is essential, especially in colder weather. It can prevent warm air from being sucked away and cold air from getting in which can save you money on energy costs. Wind Resistance By preventing cold air entering your home and keeping warm air inside, a cat fla