Copper alloy and Brass wetted parts.
.5" ABS Case, Copper Alloy Internals, 160 psi/kPa, 1/8 NPT Male Back Conn, Glycerin Filled 304SS Case, Copper Alloy Internals, 160 psi/bar, 1/4 NPT Male Back Conn, Glycerin Filled. Cleaning for Oxygen Service O2 is available only for dry or HL Halocarbon filled gauges. Impact resistant ABS and Stainless Steel case.