Filter Valves Material:304 Stainless Steel Reducing Port! Connetion:1/8" ,1/4" ,3/8" ,1/2" ZG Male thread Medium:Water,Air,Oil Max pressure:6.4Mpa,64 Bar,915PSI DN6=1/8"=9.5mm DN8=1/4"=12.5mm DN10=3/8"=16mm DN15=1/2"=20mm