The MEC MEC-1622H-HGJ First-Stage Regulator is a high-performance gas regulator designed for use in commercial and industrial applications. It features a large fabric-reinforced diaphragm for superior downstream regulation, heavy-duty wrench flats, and a large 3/4” FNPT tapped drip lip vent to help prevent relief vent blockage. The inlet pressure of this regulator is 250 PSIG, and its orifice size is 0.219”. It has an internal relief - spring loaded and a die-cast aluminum body. The mounting holes of this regulator are standard, with a 3-1/2” center and pressure taps of #54 orifice and 1/8” FNPT. The inlet is F. POL, and the outlet is 1/2 inch NPT. This regulator has a 2,300,000 BTU capacity and is designed for use with natural gas and propane. It is ideal for use in heating, cooking, and other commercial and industrial applications.