Honeywell L408J1009 Vapor Stat

Stainless steel diaphragm for use with liquids, air, noncombustible gases, ammonia, oxygen, distilled water and similar media,Provide switching,Clear plastic cover allows observation of the pressure settings,Mount using hexagonal fitting with 1/4 in. internal threads for direct mounting to the (steel) or (brass) Steam Trap (siphon loop),Ground Screw terminal