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https://click4r.com/posts/g/18....404760/cat-flap-inst
Installing a cat flap your home is a easy process. You'll need to be aware of a few points prior to getting started. Upvc door panels with a cat flap can be fitted without having to cut a hole in your door or wall. They are available from a number of glass manufacturers with a hole that is pre-drilled to fit a pet door. 1. Safety Upvc door panels cat flaps are simple to put in and can be adapted to different types of doors. They are weatherproof and energy effici