... quality warranty! 3.Widely used in the shipbuilding industry! Industrial type quick coupler P/NøDL1SWFTSUD1-2PFø7.914161/4"NPTSUD1 ... ø7.918.5251/2"NPT INTERCHANGEABILITY: Parker 20 series,Rcctus 23KA series,Amflo type "D" series,CEJN 310seriesAPPLICATION: Pneumatic tools, Automotive,Compressed,Air,Machinery ... PRESSURE: 300PSI Temperature Range: -40 to 250 FMATERIAL: Brass Industrial type quick coupler