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It is possible to insert a cat flap into a upvc panel or a double glazing sealed unit. The best solution is to put in an entirely new glass pane that has a pre-made hole. Take note of the instructions that will be included in the kit for cat flaps, and follow them closely. Make sure that the template sketch accurately depicts the shape (circle or square). Safety A microchip-activated pet panel inside your door made of upvc is a great solution for those who have a dog or cat and want to let them out into the ga