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The UPVC/PVCU material, which is resistant to UV rays and fire and is environmentally friendly. It is also extremely insulated which can reduce heating costs. It's an excellent choice for homes that are located in areas that have extreme weather conditions. The installation of a cat's door into a upvc is relatively easy. Follow the instructions included with the kit. Benefits UPVC panels are flexible and can be positioned in a variety of frames. They are also immune to fire and UV radiation. They are therefore a great opt