&&Based on the literature provided, part number M1-870-P, is a single-stage preset regulator with a CGA-870 yoke connection and a horizontal outlet. It has a chrome-plated brass body with an all brass high-pressure chamber. The maximum inlet pressure is 3000 psi and it has a durable neoprene diaphragm, it has an internal reseating relief valve that protects against over-pressurization and a sintered filter for additional safety and to extend regulator life. It comes with 2" diameter gauges and it is UL listed and preset at 50 psi.

&&This product meets the terms of heading 84.81, which provides for taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves. The Explanatory Notes to heading 84.81, first page, first paragraph, state that this heading "includes such devices designed to regulate the pressure or the flow velocity of a liquid or a gas". The fourth paragraph states, in relevant part, "Combinations consisting of a tap, valve, etc. and a thermostat, manostat or any other measuring, checking or automatically controlling instrument or apparatus of heading 90.26 or 90.32 remain in this heading if the instrument or apparatus is mounted or is designed to be mounted directly on the tap, valve, etc., and provided the combined apparatus has the essential character of an article of this heading".