The supplied GU lever-operated two-hook multipoint lock has a central latch and deadbolt with two hooks. The retained specification is 45mm backset, 92mm PZ centres and 20mm faceplate.
This listing retains two distinct supplied versions: L22864 is described as split spindle and L22863 as single spindle. The listed length options are 2170mm and 2100mm respectively. Compare the actual strip length, locking-point positions and operating arrangement with the existing mechanism before ordering, not just the 45mm backset.
Hooks and mushroom points engage their matching keeps; rollers provide closing compression. Correct seals, adjustment and alignment determine weather performance. A replacement mechanism is not a repair for a warped or misaligned door and does not by itself establish thermal, acoustic or weather ratings.
Replacement fit: compare the exact supplied reference and generation, backset, PZ centres, follower/spindle arrangement, faceplate profile, case routing, fixings, locking-point positions and frame keeps. Shared GU branding or 92mm centres alone are not a direct-fit guarantee. Spindle and cylinder selection must also match the furniture, door thickness and required outside operation.
