316 Stainless Steel or Brass wetted parts.
Cleaning for Oxygen Service O2 is available only for dry or HL Halocarbon filled gauges. Black Polypropylene safety case with solid front and blow out back.5" 316SS Internals, 800 psi/kPa, 1/2 NPT Male Bottom Conn, Glycerin Filled, Safety Glass Lens For gauges with MIP, GY40 fill is standard for liquid filled gauges.