• General-purpose regulators for line takeoff use or as integral regulators on pumps, pressure tanks and other air operated devices. Self-relieving design. Accurate regulator mechanism provides precision air control. Models:HAR-507 Technical Specifications: Flow Rate: 60 cfm Regulated Press. Range: 0-125 psi Max. Air Inlet Press.: 250 psi Max. Operating Temp.: 150º F Inlet Port Size: (1) 3/8" NPT (F) Weight: 1-1/2 lbs. Regulated Outlets: (3) 1/4" NPT (F) Service Bulletin: SB-6-147 Repair Kit: KK-4977