utilizing this OEM furnace pressure switch ensures the system stays within factory specifications for airflow and combustion safety

Using the OEM switch ensures the system operates within its tested safety parameters

ensuring zero-mod install for contractors

this component adheres to strict factory tolerances

LED Status Indicator: Simplifies troubleshooting by showing coil activation at a glance

McDonnell & Miller 250-3/4-60 Valve 30067439-890 utilizing this OEM furnace pressureThe McDonnell & Miller 250 3 4 60 is a high capacity 3 4" NPT pressure relief valve engineered specifically for hydronic heating systems and large storage tanks. Designed to provide critical over pressure protection, this ASME Section IV certified valve is factory set at 60 PSI and features an impressive thermal discharge capacity of 1,252,000 BTU hr. As a veteran grade boiler safety relief valve, it utilizes a durable bronze body and seat combined