Robertshaw 5300-023 Thermostat 30067439-890 they are interchangeable within the

they are interchangeable within the same HVAC equipment models

This OP420 CL300 model is calibrated to open the circuit (cutout) at 425 PSI and close the circuit (cut-in) once pressure drops to 325 PSI

outlet pressure range offers the flexibility required for various appliance manifolds

but its SPDT nature and dual-port design allow it to monitor differential pressure across the combustion circuit

Robertshaw 5300-023 Thermostat 30067439-890 they are interchangeable within theThe Robertshaw 5300 023 Commercial Thermostat is a heavy duty, snap acting electric thermostat designed for high demand commercial cooking and industrial environments. This SPST (Single Pole Single Throw) control utilizes Direct Acting (D. A.) logic to maintain precise thermal regulation within a range of 175F to 550F. Built for durability, the unit features silver contacts and heavy duty terminals to ensure sustained accuracy and reliable switching