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The UPVC/PVCU material is eco-friendly that is impervious to UV and fire. It also has a high insulation which can reduce heating costs. It's a great option for homes located in areas that have extreme weather conditions. Fitting a cat door into a upvc is relatively easy. Follow the directions that come with the kit. Benefits UPVC door panels are extremely flexible and can be inserted into a variety of frames. They are also immune to fire and UV radiation. They are therefore a good option for homes that are