For high frequency interior or exterior doors which could be subject to abuse. Nonhanded. Tri Pack installation. Packed with brackets for regular arm (RA), top jamb (TJ), or parallel arm (PA) installation. Adjustable closing and latch speeds. Rack and pinion operation. UL listed. Hold open arm can be templated and adjusted for 90 to 180 hold open. Now with back check feature (BC): A valve controlled function that slows the door when it's being opened, from 70 to the fully open position so that the door will not damage adjacent walls or hardware. Sizing chart for installations listed below. 10 year warranty.

For use on wood or metal doors

All parts included for regular, top or parallel arm installation

Hold open

Adjustable closing and latch speeds

Rack and pinion operation for smooth power transmission on through entire opening and closing cycle