This double-flap, insulated cat flap provides excellent protection in all climates. It can be put in wood, uPVC and glass doors. A door that is tightly sealed is essential, especially in colder weather. It keeps warm air from being sucked out and cold air from getting in, saving money on https://catflapfitters30578.rimmablog.com/30239329/installing-a-cat-flap-in-a-upvc-door-cost