1.material:304 stainless steel 2.standard: JIS&DIN,EN10312 3.size:15-108, 3/8"-10" 4.O-ring:EPDM, HNBR, CIIR, FPM male adapterMain material: 304 stainless steel O Ring: EPDMNominal.dia: 1/2"-10"or 13mm-200mmStandard : JIS & DIN Advantage: easy to install, healthy and safe, press fitting