utilizing a universal mounting base that accommodates various wall-plate configurations and ensures a secure fit over existing pneumatic or electronic sensors

As a high-performance HVAC replacement part

Optimized ventilation through the wire cage design

Electrical Connection: 18-inch wire leads provide ample length for routing to J-boxes or control panels

OEM Reliability: Ensures the pneumatic seal meets original manufacturer specifications for internal pressure retention

McDonnell & Miller 343500 Bellows Assembly Freon utilizing a universal mounting baseWhen you are servicing a 64 Series low water cut off, the McDonnell & Miller 343500 Bellows Assembly (Model SA64 2) is the standard issue component required to restore essential boiler safety functions. This authentic replacement bellows assembly is engineered for heavy duty steam boiler control, specifically bridging the gap between the internal float mechanism and the electrical switch. As a direct fit part for 64 Series LWCO and 764 models, it