https://zenwriting.net/atomcop....y3/fitting-cat-flap-
https://damborg-finn.technetbl....oggers.de/cat-flap-i
A cat flap made of UPVC is a great option to allow your cats to leave and come whenever they want. It's a simple three-step installation procedure and can be incorporated into glass doors, wooden doors, or UPVC panels. It is a great option for those who wish to ensure their pets are safe and save 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