https://fkwiki.win/wiki/Post:G....uide_To_Replacement_
UPVC Door Handles Replacement Guide Once you have the right measurements, replacing upvc door handle is a simple DIY project. These measurements include the distance from the handle's backplate mounting centres (sometimes called PZ) to the center of the keyhole. The most common kind of uPVC door handle has two levers inline both internal and external that is connected via spindles. They operate the multipoint lock on uPVC and aluminium doors along with some woo
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