For use with air tools, garage, industrial air line supplies and test panels. Free air flow rate at 7bar/100psi: 35 to 42cfm (990 to 1130ltr/min). Zinc plated all steel construction, finished in hard wearing passivate. Stainless steel springs and balls. Positive single locking action prevents accidental dislocation. For fixed applications – for couplings for trailing hoses.