McDonnell & Miller 6667-MV Low Water Cut-Off Head MechanismMcDonnell & Miller 6667 MV Low Water Cut Off Head Mechanism is a replacement part designed for the 67 G Series Millivolt Service Float Type Low Water Cut Off systems. This head mechanism provides precise water level sensing and dependable boiler safety in residential and light commercial setups. Engineered to OEM specifications, it offers reliable operation with straightforward maintenance and ease of replacement. Specifically engineered as a direct

Enclosure & body: NEMA 1

Featuring a straightforward manual reset

This unit features auto reset

Output: 24 V AC

Supports steady cooling and minimizes downtime during repairs

pressure rating 30 PSI

87 V primary

It adheres to original equipment specifications to deliver a precise fit and durable service life

delivering long life in demanding environments

this blower preserves furnace safety and extends the life of your heating system when paired with proper professional installation

helping technicians complete maintenance quickly without specialized tools

brass seats and discs