While designed as a Newco 705595 replacement

this 150-200F auto limit switch provides the reliability required for high-demand residential and mobile home furnace applications

As a direct replacement for B1408403

With an operational temperature range of -40°C to +85°C

Durable Construction: Built to withstand the high inrush currents typical of industrial refrigeration start-up cycles

Rheem-Ruud 42-25106-01 Defrost Relay While designed as a NewcoThe Rheem Ruud 42 25106 01 Defrost Relay is a heavy duty 24V DPDT (Double Pole Double Throw) component designed for precise defrost cycle management in residential and commercial condensing units. Engineered to replace aged or pitted mechanical relays, this HVAC defrost control relay handles switching for both the outdoor fan motor and the compressor contactor circuit simultaneously. It operates with a 24V coil voltage, ensuring seamless integration