- Full? opening to 90? Providing clear egress in excess of? 500mm on a 600mm wide vent
- Easy to operate thumb catches allow the vent to slide to the Easy clean position giving between 100 and? 250mm clear opening
- To reset simply close? the window and then re-open to go back to the egress position and close
- Conforms to BS6375 parts 1 and 2
1 pair contains 1 restrictor and 1 non restrictor.?