Honeywell 1/2"X1/2" Intermittent Hot Pilot Ignition Smartvalve W/ Slow 32" Wc1/2" NPT x 1/2" NPT Intermittent Hot Surface Pilot Ignition SmartValve Control with slow opening and 3.2" wc pressure regulator setting. Product Specifications BRANDHoneywell INLET SIZE INCHES1/2 OUTLET SIZE INCHES1/2 FUEL TYPENatural Gas OPENING TYPESlow DESCRIPTIONIntermittent Hot Surface Pilot Ignition SmartValve Control TYPEStraight-Through LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERSV9502H2522