Combination Gas Control, 24Vac, Step Opening, 3/4"x3/4", Full Rate 3.5" Water Column Pressure Regulator Setting, 0.9" Water Column Step Setting, Natural Gas, 1/2 Psi Pressure Rating, 1/8" Pressure Tapping with Plug, Standing Pilot, 0-90 Degree in Any Direction from Upright Position of Gas Control Knob, Including Vertically, 32-175 Degree Ambient Temperature Range, Includes Two 3/4"x1/2" and One 1/2"x3/8" Reducer Bushings