Honeywell Pressuretrol® Main Scale L404F1367, Less Siphon, 1-8 PSI MainFeaturesProvide operating control with automatic limit protection for pressure systems up to 300 PSI (2068 KPA)Use with steam, air, noncombustible gases, or fluids non-corrosive to pressure sensing elementModels have snap-acting switching to open or close a circuit on pressure riseHave adjustable differentialsAdjustments are made by screws on top of caseMount using 1/4 inch -18 NPT internal pipe threads or surface mount through base of caseGround screw terminal Product Specifications BRANDHoneywell LENGTH INCHES8 WIDTH INCHES6-1/2 HEIGHT INCHES3-4/5 WEIGHT LBS2.45 MAXIMUM Sustained OPERATING PRESSURE25 OPERATING PRESSURE RANGE PSI1 to 8 PRESSURE DIFFERENTIAL PSI0.75 to 2 TYPEPressure Control For Vapor Heating Systems LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERL404F1367