1.Stainless Steel Quick Coupling Type B 1/2 NPT, 2.Size1/2"-4", 3.Material:stainless steel ADAPTOR FEMALE 1.Stainless Steel Quick Coupling Type B 1/2 NPT,2.Size1/2"-4 ... ,ANSIB 16.11,JIS B23.6,HGJ10;SHJ410 etc.MaterialCF8M/1.4408/SS316,CF8/1.4308/SS304EndANSI B2.1 , BS21, DIN259/2999, JIS B0203Application ...