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High-Flow Capacity: Rated for up to 270
it is recommended to verify if additional flange gaskets (like the 100483 series) are required for your specific furnace model during the swap
it eliminates the guesswork of universal seals that fail under thermal expansion
ensuring consistent airflow and thermal management for critical refrigeration and HVACR systems
stem and diaphragm assembly
McDonnell & Miller 247-2 Water Feeder R-410A High-Flow Capacity: Rated for upThe McDonnell & Miller 247 2 (Part Number 133800) is a heavy duty mechanical water feeder specifically designed for steam and hot water boilers requiring consistent cold water makeup. This unit features a built in No. 2 Switch, providing integrated Low Water Cut Off (LWCO) functionality with two snap acting SPDT switches. This configuration ensures that if the water level drops below a safe threshold, the burner circuit is interrupted while