This is a Single Stage Chrome Plated Brass Body Regulator with a 1/4 in MNPT outlet connection and 1/4 in FNPT body porting.

This regulator is to be used in applications requiring delivery pressures up to 90 PSIG and can accept a maximum inlet pressure of 3000 PSIG. Single Stage regulators should be used only for applications where an operator can monitor and adjust pressure as needed, or when the regulator is supplied with a nearly constant source of pressure, as opposed to dual stage regulators which are able to adjust for variable inlet pressure while still producing a constant output. Temp range -40 to 140 degrees. Comes with PTFE sealing washer. A CGA gas type connection chart can be found in the downloadable section below.