https://trade-britanica.trade/....wiki/Cat_Flap_Cover_
A upvc panel cat flap allows your cat to leave and come at their own pace. It is a simple 3-step installation process and can be fitted into glass doors, wooden doors or UPVC panels. This is a great option for those who want to secure their pets and reduce energy costs. UPVC panels are durable and 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 option to keep your pet secure while you're away. Many different d