WhatsApp: +86 15026860702 Web : http://www.hydraulic-quickcoupler.com Feature: 1.Poppet valves available to prevent uncoupled leakage. 2.Poppet valves open automatically when coupled, within rated working pressure, to keep the flow expeditely. 3.Critical parts are hardened for durability. 4.Dependable ball-locking mechanism holds the mating halves together. 5.Socket and plug are precision machined from solid bar stock. 6.Conforms to the standard of ISO7241-A. 7.Compatible with PARKER 6600 Series,FASTER ANV Series,AEROQUIP 5600 Series and HANSEN HA 15000 Series.