Honeywell Dual 2-Stage Intermittent Pilot W/ 3/4"X3/4" Slow 17-35" Wc High24 Vac Dual 2-Stage Intermittent Pilot with 3/4" x 3/4" inlet/oulet, slow opening and 1.7" wc low 3.5" wc high pressure regulator setting. Product Specifications BRANDHoneywell INLET SIZE INCHES3/4 OUTLET SIZE INCHES3/4 BTU/HR MIN30000 BTU/HR MAX300000 MAX OPERATING PRESSURE (PSI)1/2 FUEL TYPENatural Gas OPENING TYPEStandard DESCRIPTIONDual 2-Stage Intermittent Pilot IGNITION TYPEIntermittent Pilot TYPEStraight-Through LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERVR8304Q4511