Pressuretrol Controller, 20-300 PSI Operating Pressure Range, 20-50 PSI Differential Pressure, SPDT Snap Action, Make R-W, Break RB on Pressure Rise, For Use with Steam, Air, Noncombustible Gases or Non Corrosive Fluids, 120Vac/240Vac, Mount using 1/4"NPT Internal Pipe Threads or Surface Mount Through Base of Glass

Pressuretrol Controller, 5-50 PSI Operating Pressure Range, 6-14 PSI Differential Pressure, SPDT Snap Action, Make R-W, Break R-B on Pressure Rise, For Use with Steam, Air, Noncombustible Gases or Non Corrosive Fluids, 120Vac/240Vac, Mount using 1/4"NPT Internal Pipe Threads or Surface Mount Through Base of Glass

Pressuretrol Controller, 1-8 PSI Operating Pressure Range, .75-2 PSI Differential Pressure, Snap Switch Breaks R-B ( Closes R-W ) on Pressure Rise, For Use with Steam, Air, Noncombustible Gases or Non Corrosive Fluids, 120Vac/240Vac, Mount using 1/4"NPT Internal Thread