Honeywell 3/4" Nptx3/4" Npt Powerpile Millivolt Gas Valve W/ Step: 09-35" Wc3/4" NPT x 3/4" NPT PowerPile Millivolt Combination Gas Valve with Step: 0.9" wc non-adjustable Full rate: 3.5" wc, 3-5" adjustable pressure regulator setting. Product Specifications BRANDHoneywell INLET SIZE INCHES3/4 NPT OUTLET SIZE INCHES3/4 NPT with 1/2 NPT Side Outlets VOLTAGEMillivolt PRESSURE REGULATOR SETTINGStep: 0.9 In. W.C. Non-Adjustable; Full Rate: 3.5 In. W.C., 3-5" Adjustable FUEL TYPENatural Gas APPLICATIONSelf-Powered Automatic Control; Use With 750 mV Pilot Generator DESCRIPTIONPowerPile Millivolt Combination Gas Valve TYPEStraight-Through Multi-Tapped LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERVS820C1100