Pricing mentioned is for EA. Requires a minimum buy of 1 piece. Cylinder Pressure Testing Gauges, Acetylene (Commercial), Brass, CGA-300; Hazmat=False; Features=With Hand-Tight Nut; StandardPack=1EA; CountryOfOrigin=US; Diameter=2 in; Gas Type=Acetylene (Commercial); Material=Brass; Pressure=400 PSIG [Max]; Type=Gauge;