https://www.repairmywindowsand....doors.co.uk/southend
This insulated cat flap comes with a double-flap mechanism and offers a good level of protection for different climates. It can be used in wood, uPVC and glass doors. A door that is tightly sealed is essential, especially in cold weather. It prevents warm air from being sucked away and cold air from getting in and causing energy costs. Wind Resistance By blocking cold air from entering your home and allowing warm air in, a cat flap cover will keep it warmer. The best ones come with magnet seals and are lined