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A upvc panel cat flap allows your cat to come and leave as they please. The installation process is a three-step procedure that can be completed on wooden doors, glass panels or UPVC panels. This is a great choice for those who want to ensure their pets are secure and save money on energy. 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 inside your door