With its distinctive blue and white label

Enhanced System Safety: Specifically calibrated for 2-stage gas furnaces to monitor variable inducer fan vacuum levels

a common cause of solenoid coil failure

pressure switches are calibrated to specific WC (Water Column) ratings

40" WC setpoint

York S1-373-23068-006 Heat Exchanger R-410A With its distinctive blue andThe York S1 373 23068 006 is a 6 tube aluminum heat exchanger engineered for critical furnace performance and precise HVAC replacement. Built for high output thermal conductivity, this OEM furnace part facilitates maximum heat transfer across its six passage geometry, maintaining the assembly's integrity under heavy duty cycles. For technicians troubleshooting cracked cells or restrictive airflows, this York heat exchanger replacement ensures a drop