https://world-news.wiki/wiki/C....at_Flaps_For_French_
A cat flap made of UPVC allows your cat to come and leave at their own pace. It is a simple 3-step installation procedure that can be incorporated into glass doors, wooden doors, or UPVC panels. This is a great option for those who want to secure their pets and save on energy costs. UPVC panels can resist heat, moisture, and UV. Easy to install If you have a cat you might want to think about installing a pet flap in your glass door or window. This is a great solution to keep your pet safe when you are away. A variety of different