... bore1),Size:1/4"-------4"2),Material:stainless steel 304,316(CF8,CF3)3),Pressure:1000WOG,2000WOG4),Suitable medium:water,oil,air ... :threaded(NPT,BSPT,PT)9),Operation:hand,electric 3 pcs electric ball valve(electric ball valve,pieces ball valve,stainless steel ball valve)