Direct OEM Fitment: Eliminates the need for field modifications or bracket adjustments in York HVAC units

It operates with a precise 3

It features a range of 20 inches Hg to 100 PSIG

This unit serves as the direct replacement for Berko 3900-2011-000

Key Benefits for Technicians Precise Flow Control: The 2

McDonnell & Miller 328100 Replacement Casting Refrigerant Direct OEM Fitment: Eliminates theThe McDonnell & Miller 328100 is an authentic OEM replacement casting specifically engineered for the 157 R Series low water cut off and pump controllers. This heavy duty 157 R casting provides the structural foundation for your float chamber, ensuring a pressure tight seal in high demand residential, commercial, and industrial steam boiler applications. In the field, these castings are critical for maintaining system integrity when original housings