https://scientific-programs.sc....ience/wiki/Cat_Flap_
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Double-glazed cat flaps allow your pet to go in and out of the home without restriction. This can help to reduce stress levels, enhance their sense of independence, and encourage exercise and exploration. is cut during the manufacturing process and later fitted into new uPVC windows and doors. It should not be installed into glass that has already been tempered. Cost It's important to take into consideration the cost of installation when deciding whethe