this Carrier 311213-405 replacement is the direct successor to legacy part numbers 308090-405 and 308570-304

Industrial Build Quality: High-grade windings and precision bearings reduce vibration and mechanical wear

Field Versatility: Straight-through flow design includes reducer bushings and an LP conversion kit for multiple fuel configurations

Built to withstand the harsh thermal environments of gas furnaces

Robertshaw 4200-025 Gas Thermostat 30067439-890 this Carrier 311213-405 replacement isThe Robertshaw 4200 025 Gas Thermostat is a heavy duty, high capacity commercial control designed for precision temperature management in professional kitchen environments. This FDO model thermostat operates within a 150F to 550F range, making it a versatile solution for commercial deck ovens, convection ranges, and fryers. Engineered for durability, it features a 54 inch nickel plated copper capillary and a 3 16" x 14 3 4" sensing bulb that ensures