Always verify internal trim sizing before installation

This OEM replacement part is essential for preventing heat exchanger damage by disengaging the gas valve and activating the blower motor when internal plenum temperatures exceed safe operating parameters

Versatile Media Compatibility: High-grade Buna-N elastomers provide excellent resistance to petroleum-based fluids and general pneumatic media

The "/U" suffix typically denotes a "Universal" or retail-packaged version of the exact same flange adapter used in industrial applications

replacing part numbers LB-65734B and 43J5601

Hydrotherm 02-2406 Aquastat 320788-702 Always verify internal trim sizingThe Hydrotherm 02 2406 Aquastat is a mission critical immersion type temperature controller engineered for high performance hydronic systems. Featuring a Single Pole Single Throw (SPST) switching configuration, this rugged aquastat relay provides precise thermal regulation across a broad 40F to 240F operating range. Designed for direct insertion into the medium, the Hydrotherm 02 2406 functions as a reliable high limit or low limit control, ensuring