This Cego Surelock Centre Lockcase is available with a 35mm backset. The Cego surelock centre lockcase can be used to replace a damaged central lockcase in a multipoint lock, saving you from the cost of buying the whole mechanism. Used by Surelock, Bowater, Zenith & Staybright among others so may also be known by these names. Reversable Latch, This lockcase will fit left & right handed doors, to reverse latch open side panel, remove latch plate & spring, turn latch over then replace spring & plate. Available with 35mm Backset. 70/92mm PZ Centre.