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This double-flap cat flap that is insulated provides excellent protection in all climates. It can be put in wood, uPVC and glass doors. It is essential to have a door that seals tightly, particularly during colder weather. It stops warm air from being sucked out and cold air from entering, saving money on energy costs. Wind Resistance Using a cat flap cover for winter will help to keep your home warm by blocking cold air from getting in and keeping warm air inside. Most of the best options are insulated and have an el