Combination Gas Control, 24Vac, Standard Opening, 1/2"x3/4", 3.5" Water Column Pressure Regulator 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 One 3/4"x1/2" Reducer Bushing