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Find the right solution for your plumbing needs

Since 1932, Maid O' Mist has been manufacturing the most complete line of air elimination valves in the industry. We offer fifteen models of air elimination valves, twenty models of steam valves and seven models of vertical/horizontal float operated water level controls to meet your hydronic, steam, solar and water application needs.

Automatic Air Valves

Correct problems and avoid trouble by installing these float-operated Auto-Vents. They vent air from mains, solar panels, pipe lines, boilers, unit heaters, chillers, convectors, radiant panels, coils, baseboard and free-standing radiation.

Thermocouples

Float Control Valves

High Capacity Forged Brass Vents

Purges and eliminates air in water lines, installs vertical at highest points on line.

Jacobus Steam Vents

A vent port size for every room, from the largest size for the coldest rooms to the smallest size for the “too hot” rooms. Easy to install on any radiator.

Manual Vents

Shutoffs and Connectors

Vertical Radiator Steam Vents

Tankless Water Heater Connection Valves