McDonnell & Miller 63HD Low Water Cut-Off Head MechanismMcDonnell & Miller 63HD Low Water Cut Off Head Mechanism is a replacement head mechanism for the McDonnell & Miller 63HD Low Water Cut Off system. Designed for use on the 63 Series Float Type Low Water Cut Off, this head mechanism includes a No 2 Switch to ensure quick installation and compatibility. Perfect for boiler safety control needs, this Type Head Mechanism delivers dependable shut off and durable performance in demanding boiler environments.

With solid construction and dependable performance

The robust design resists corrosion

125 VA at 120/240 V

Armstrong 83L86's durable construction and precision engineering support consistent results across cycles

This beige plastic cover is designed for horizontal mounting and helps keep controls clean and accessible

Design: Dual capacitor for improved start-up and condenser performance

3-inch flanged configuration for simple installation

Seamless MEC320/MEC480 compatibility with plug-and-play updates for rapid commissioning

and stands up to challenging commercial settings

Water Heater Thermocouple for Bradford White ensures quick ignition and safe operation of your gas water heater

this valve delivers linear

Compatible with standard Bacharach testing accessories