Honeywell Pressuretrol Limit Controller L4079B1033, Manual Reset, 2-15 PSI, 14-1 KG/CM²

Features high pressure limit switches stainless steel diaphragm for use with steam, air, noncombustible gases and fluids non-corrosive to stainless steel l4079w is for oil applications micro switchÔ snap-acting switches open automatically on pressure rise; must be manually reset mount using 1/4" npt female fitting on diaphragm assembly or surface mount through back of case.