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https://telegra.ph/Cat-Flap-In....stallation---How-to-
Cat and dog flaps in double glazing allow your pets to move around as they please. They are also great for keeping an eye on your pet whilst you are away from home. It is possible to install a cat flap inside an existing uPVC panel or double glazing glass sealed unit, but you'll need to replace the piece that has a hole already made. A glazier can do this using the appropriate equipment and the right training. Easy to install A cat flap is an excellent alternative to allow your