Copper alloy or 316 Stainless Steel and Brass wetted parts.5" Brass Case, Copper Alloy Internals, 5000 psi/kPa, 1/4 NPT Male Bottom Conn, -40 Degree Service Filled Cleaning for Oxygen Service O2 is available only for dry or HL Halocarbon filled gauges. Pressure Gauge, 2. -20 Back Conn, Glycerin Filled.
304SS Case, Copper Alloy Internals, 200 psi/kg/cm2, 1/4 NPT Male Bottom Conn, Glycerin Filled. Cleaning for Oxygen Service O2 is available only for dry or HL Halocarbon filled gauges.