Honeywell Steam Vaporstat Controller W/Grounding Screw L408J1017, 1/4" Female, 15 PSI (Max)

Features provide operating control and automatic high limit protection for vapor heating systems with pressures up to 4 psi (8 kpa). all models have microswitch snap switches to open or close a circuit on a pressure rise stainless steel diaphragm for use with liquids, air, noncombustible gases, ammonia, oxygen, distilled water and similar media provide spdt switching clear plastic cover allows observation of the pressure settings mount using hexagonal fitting with 1/4" npt internal threads for direct mounting to the 14026 (steel) or 50024585-001 (brass) steam trap (siphon loop) ground screw terminal.