Honeywell Single Stage Pressure Regulating Valve, 24Vac, 1 1/4″, Natural Gas, 3″-4.5″ Water Column High Fire Regulator Setpoints, 3.5″ Water Column Factory Setting, 480-1600 Cfh Capacity, 3-25 Second Valve Opening Time, 2 Second Max Valve Closing Time, 1/8″ NPT Pilot Tapping, 1/2 Psi Pressure Rating, Upright Horizontal Mounting, Slow Opening, 5/16″ UNF Bleed Tapping, Aluminum Body, Two 30″ Leadwires