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UPVC Replacement Door Handles The handles on your doors wear out over time and need to be replaced. It is important to be able to match the dimensions of the old handles when replacing them. The top screw position as well as the lever and keyhole dimensions are the three measurements that you need to check. Use the size guide to help you. Inline Lever/Lever A lever handle or lever is a modern-day door handle that is designed to fit new or replacement doors. This kind of handle is available in various desig