Key Benefits: Precision Thermal Response: High-accuracy NTC thermistor technology provides exact data to the control logic for stabilized operation

streamlining HVAC sensor replacement and new builds

The kit features lead-free construction and includes all wetted internal components: first and second check valve poppets

Normally Closed (N/C) mini-pressure control is factory-set with a 250 PSI cut-out and a 190 PSI cut-in

Common Questions Is the MARS 81138 compatible with 250V systems

Carrier 12459 Damper 318423-701 Key Benefits: Precision Thermal Response:The Carrier 12459 Damper is a critical OEM replacement part designed for precision airflow management within residential and light commercial HVAC systems. Engineered to meet original factory specifications, this replacement air damper ensures seamless integration with Carrier, Bryant, and Payne equipment, effectively regulating the volume of conditioned air distributed through the ductwork. By maintaining proper static pressure and balancing supply