Thread type: Female, Male, Hose Barb Size: 1/4" NPT, 3/8" NPT, 1/ ... /4 " body inforamtion :1,name :quick coupling2,Thread type: Female, Male, Hose Barb3, Size: 1/4" NPT, 3/8" NPT, 1 ... &Compressor.MAX. WORKING PRESSURE: 300PSI Temperature Range: -40 to 250 F P/NSIZE MaterialThreadPackage20SF-B1/4"BRASSBSPbulk30SF-B3/8"BRASSBSPbulk40SF-B1 ...