Honeywell Dual Direct Ignition Gas Valve W/ 1/2"X3/4" Standard 35" Wc24 Vac Dual Direct Ignition Gas Valve with 1/2" x 3/4" inlet/outlet, standard opening and 3.5" wc pressure regulator setting. Product Specifications BRANDHoneywell INLET SIZE INCHES1/2 OUTLET SIZE INCHES3/4 BTU/HR MIN30000 BTU/HR MAX270000 MAX OPERATING PRESSURE (PSI)1/2 FUEL TYPENatural Gas OPENING TYPEStandard DESCRIPTIONDual Direct Ignition Gas Valve IGNITION TYPEDirect Ignition TYPEStraight-Through LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERVR8305M3506