5000 series door closer

5000 series door closer can support door weightin large range,from 15kg to 180kg. 1.commercial and residential use for multi-size door,adjustable spring power and closing/latching speed 2.standard,top jamb and parallel arm installation 3.standard with check back function,delay action optional 4.precise heavy duty rack and pinion 5.factory tested to meet ANSI standard 156.4 6.high quality anti-freezing hydraulic fluid 7.finish color upon request 8.UL listed 9.5014 BC/BF:Spring power from size 1 to size 4,barrier free for elderly or handicapped