Gas Valve, Millivolt Combination, Natural Gas, Step Opening Pressure Regulator, 3/4" x 3/4" NPT with 1/2" NPT Side Outlets, 0.9" Water Column Non Adjustable Pressure Regulator Setting, 3.5" Water Column Full Rate Pressure Regulating Setting, 1/2 Psi Pressure Rating, 1/8" NPT with Plug Pressure Tapping, 750Mv, Compression Fitting for 1/4 O.D. Tubing, Includes Two 3/4" x 1/2" Reducer Bushing and One 1/2" x 3/8" Reducer Bushing