Karman's oxygen regulator is designed to reduce the pressure and control the flow for an oxygen cylinder. The regulator comes with a CGA 870 nut and nipple in 0-8 LPM. The body is composed of high strength aluminum alloy and an all brass core. 11 Flow positions and easy to read flow rates. The regulator also features a ribbed flow selector for better grip and a viton rubber yoke seal with brass outer ring.