Resideo T100B1043 Control 318973-401 and they are completely interchangeable

and they are completely interchangeable in the field

This SPDT gas switch is designed to break the electrical control circuit immediately when gas pressure drops below your specific set point

no-slip grip on the drive shafts for consistent torque transfer

This ASCO 8000 series component is optimized for high-flow applications

Resideo T100B1043 Control 318973-401 and they are completely interchangeableThe Resideo T100B1043 Control is a professional grade thermostatic radiator actuator designed for precise hydronic heating management in high capacity systems. Engineered for use with V100 and V2000 series radiator valves, this self powered controller features a 16 foot capillary tube, allowing for remote setpoint adjustment and sensing in large enclosures or hard to access areas. By eliminating the need for electrical wiring, the T100B1043 provides a