this unit serves as a direct cross-reference for legacy part numbers W0038001 and R0317400

Is the 628 series suitable for corrosive media

Solid State Reliability: Enhanced accuracy over bimetallic alternatives reduces downtime caused by improper thermal modeling

Mounting Precision: Features the RA-click/Allen-screw connection for a solid

maintaining original equipment integrity and port dimensions

Resideo L6008A1242 Control 326058-756 this unit serves as aThe Resideo L6008A1242 is a professional grade remote bulb immersion aquastat engineered for high precision liquid temperature regulation in hydronic heating systems. Ideal for use as a circulator control or low limit controller, this unit features a single pole double throw (SPDT) switching action, allowing it to break the circuit on temperature fall or rise depending on your wiring configuration. It operates within a 100F to 200F temperature range