Fakro ZBB Opening Restrictor
Thanks to the application of the restrictor, it is possible to leave the window ajar tilted by approximately 10cm (depending on a window type and size) without fear that strong wind will change the sash position. In low installed windows, the ZBB opening restrictor significantly improves the safety of a FAKRO roof window for families with small children. When the window is closed, the restrictor cannot be seen and does not hinder window operation. Designed only for FAKRO wooden windows.