NSK-780 Rack & Pinion Door Closer with Adjustable closing Rack & Pinion Door Closer with Adjustable closing force EN 2-5 Easy opening action Adjustable closing speed in two independent ranges (120°-15° and 15°-0°) Non handed design With track arm Adjustable back check Tested to EN 1154 Maximum door weight-upto 100Kg. Maximum door width-1250mm Fire tested and certified by Warrington APT Laboratories.UK Test certificate available on request Can be mounted to door leaf and transom Finish: Silver