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This insulated cat flap comes with a double-flap mechanism and offers a good level of protection in a variety of climates. It can be put in wood, uPVC and glass doors. A tightly sealed door is essential, especially in colder weather. It stops warm air from being sucked out and cold air from getting in which can save money on energy costs. Wind Resistance A cat flap cover for winter will help to keep your home warm by stopping cold air from entering and allowing warm air inside. The