Johnson Controls A421AEC-02 Temperature Control 30067439-890 it features a 1/4" NPT

it features a 1/4" NPT process connection and a 1/8" NPT vent port

is a precision-engineered low gas pressure switch designed for critical monitoring of gas supply pressures in industrial burner systems and commercial HVAC applications

making it ideal for units with standing pilots

this specific assembly is sized exclusively for 1-1/4" White Rodgers 1311 and 1361 series valves

Johnson Controls A421AEC-02 Temperature Control 30067439-890 it features a 1/4" NPTThe Johnson Controls A421AEC 02 is a heavy duty single stage electronic temperature control engineered for precision in demanding HVACR environments. This unit serves as the direct replacement for A419AEC 2 and A419AEC 2C, offering a critical upgrade for contractors maintaining refrigeration, space heating, and cooling systems. Housed in a NEMA 4X enclosure (IP66), this controller is built to withstand wash down environments and high moisture