making it a reliable solution for various furnace and boiler configurations

Corrosion-Resistant Hardware: Built to resist oxidation and scale buildup

ODF Connections: Precision 1/2" sweat copper fittings allow for clean

OEM Reliability: Genuine factory part ensures precise mounting and electrical connection compatibility

Durable Construction: High-grade materials designed to withstand the harsh thermal cycling of industrial and residential plenums

McDonnell & Miller 93-M Pump Controller R-22 making it a reliable solutionThe McDonnell & Miller 93 M is a commercial grade combination low water cut off and pump controller designed specifically for steam boiler applications. Engineered for systems with a maximum steam pressure of 150 PSI, this unit features dual snap acting manual reset SPDT switches. These switches provide decisive electrical contact, preventing the rapid cycling or "chattering" often found in mercury free alternatives during turbulent water level