100mm initial opening restriction 2 handed operation for safety Automatic re-engagement BS EN 14351 – Load bearing clause 4.8 safety device Suitable for use of fire egress applications Arm lengths to suit 60/70mm profile The Easyfit Boa Restrictor limits the window opening to 100mm which will allow ventilation with safety. With a stack height of 13mm and arm lengths to suit 60mm or 70mm profiles, this unit is also suitable for use on fire egress applications and is quick to install.
