Electronic operation

Easy to install and wire

Red low water indicating LED

Green power indicating LED

No blow down required

For residential, commercial and industrial applications

Heavy duty

Includes No. 2 switch

Two electrical knock-outs allows connection from either end

Sensitivity adjusting screw makes flow adjustment easy

Single pole, double throw snap switch

Hardened stainless steel bearings minimize friction

Sealed Monel bellows

Optional manual reset available

Heavy Duty

Full-ported ball action valve

PTFE seats provide bind free, leak tight ball movement

Easy open handle keeps hands away from hot water and steam

For boilers of any steaming capacity

Quick hook-up fittings provided

Lever-operated, full port ball valve for easy blow down

Adjustable BX outlet for easy installation

Dual precision switches for dependable operation of the low water Cut Off and alarm or electric water feeder

Low voltage switches for Self-generating millivolt circuits

Large float chamber

Brass threads provide a metal-to-metal seal that ensures a leak-free installation

Integrated wrench flats enable secure installation without damage to the housing

McDonnell and Miller's patented Self-cleaning probe minimizes scale build-up and extends the recommended cleaning interval to 5 years

"Plug and Play" wiring harnesses are available for most residential gas-burning boilers