McDonnell & Miller 369 Boiler Low Water Cut-OffBoiler Low Water Cut Off, the McDonnell & Miller 369, delivers reliable boiler protection with a built in low water cutoff. Designed for both residential and industrial boilers, this mechanical actuation device ensures safe operation in steam and water systems. Featuring a 2 1 2 inch threaded port and a compact footprint (9 1 2 inches long by 4 1 8 inches wide), it installs easily into existing boiler setups. The unit supports 120 240 volt AC power,

Power: 60 VA driving

The electronic sensing element

Open Frame

Compatible with MS4103A1130 and MS8103A1130 assemblies

Capacity: 475 pounds per hour

Designed for reliability across irrigation

The outlet pressure range is 1 to 3

designed as a compact Type Sequencer Switch in a Size #1 form factor

this insert offers a precise fit for Heil Quaker and ICP 4686RP assemblies

the Armstrong 81W03 features durable components and precise circuitry that helps minimize wear on your furnace control system

Mounting: Upright (horizontal)

while the included transformer and auxiliary switch streamline wiring