75050 From: £21.00 From: £25.20
75175 From: £12.85 From: £15.42
75177 From: £7.77 From: £9.32
75303 From: £26.78 From: £32.14
Sash window locks are designed to operate in a addition to the sash fastener. Some types of sash window lock allow the window to be locked open, which is desirable during hot weather. The SDS security sash window stops allow the upper or lower sash top be locked shut or locked open.