https://blogfreely.net/fenderc....ream9/using-upvc-cat
A cat flap on a door allows your pet to go in and out of the home without needing to open it. They are available in a variety of sizes to accommodate cats and dogs. They also have features that stop draughts and unwanted critters. Introduce your pet to the door before installing it. It will be easier for them to get used to its design, size and motion. Easy to install Cat flaps can be placed everywhere - you can have one on your garage door or laundry room, to allow your pets access to litter box and cat food or even o