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https://trade-britanica.trade/....wiki/Through_Wall_Ca
A door made of upvc that has a cat flap can help to reduce draughts in your home. You can save money by keeping your pet inside and letting cold air out. It is possible to install cat flaps into both upvc panels and double glazing glass sealed units however it can be more difficult than with doors made of wood. This is because there are different thicknesses of upvc. Benefits A cat flap installed on your door will allow you to keep your pet inside or outside the house, while still let other people in. It also keeps out cats that