... material: Plastic, 2)conection:coupler/ thread, 3)medium:water,oil,acid,,alkali ect 4. ... material: Plastic,2)conection:coupler/ thread,3)medium:water,oil,acid,,alkali ect4. ... Size:1/2" ~6"plastic ball valve name plastic ball valve material plasticconnection form BSPT/ NPT quick coupler ... working pressure 0~1.1mpa medium water,oil,acid,,alkali ect.channelstaight throughcolorblack ...