McDonnell & Miller FS5-1 General Purpose Liquid Flow SwitchThe McDonnell & Miller FS5 1 General Purpose Liquid Flow Switch is engineered for reliable inline flow monitoring in boiler and hydronic systems. This 1 inch nominal size inline flow switch features threaded end connections and a durable SPDT snap switch to deliver dependable operation across a variety of fluids. With adjustable sensitivity, it detects both low and high flow conditions and triggers alarms or control devices as needed. The unit is UL

Fit: M50 connections

Standalone parallel positioning controller for independent

It is manufactured to match the tolerances of the Lochinvar 100326985 lineup

high-quality build for long-lasting performance

As a dedicated HVAC vent component

This 12 inch heating element kit is built for efficiency with a 4500 watt power rating at 240 volt

Installation: Easy-to-replace Lochinvar part ensuring trusted reliability

Color: Purple enclosure

This Type Pilot Assembly delivers reliable ignition performance when installed in compatible heating systems

and factory-tested integrity

80–140°F (maximum)

The RIB Relays RIBH1C Enclosed Pilot Control Relay is engineered for reliable switching in compact control panels