Winlock Boa Restrictor s for use on UPVC windows.
Winlock Boa Restrictor Features
• the Window Restrictor Provides 100mm initial opening and requires 2-handed operation.
• Automatically re-engages when the window is closed, and is non-locking.
• The green buttons provide fire egress.
• The window restrictor fits inline with friction stays and Incorporates run-up blocks to save cost.