... brass oxygen regulator with two check valves, 2)chrome plated, 3)12 flow positions, barb or DISS outlet, 4 ... yoke style2) Material: Brass3) Outlet:Barb or DISS outlet or W/2CV(power take-off)4) Flow ... -15lpm, 0-25lpm6) Surface finished: Chrome plated or Nickle plated7)Output pressure:50PSI 8)Diameter: 1 ... 1/8 NPT, Fill/Refill10) right or left handled. CGA870 brass oxygen regulator with two check valves