Yale ys170 upvc reversible latch hookbolt multipoint gearbox
This is the yale ys170 replacement upvc and composite multipoint lock gearbox the backset available for this model is 35mm upvc and 45mm composite this measurement can be checked by looking at the distance between the edge of the faceplate to the centre of the keyhole the pz centre measurement of this model is 92mm if you need to check the
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