We offer the Surelock UPVC Door Lock Centre Case Gearbox in a 35mm
backset version. Surelock, also known as Cego Surelock, is a handed
dual spindle latch & deadbolt centre case lock meaning it will suit
either Left or Right Hand applications. Please ensure you order the
correct handing to suit your existing applications. If you are unsure, please get in touch with our of our customer service agents.