this unit features a 1/2" NPT connection and utilizes a balanced valve design to provide exceptional outlet pressure stability despite fluctuating inlet pressures

R100684-08)

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Fabricated from flexible graphite or high-grade reinforced composites

This OEM Johnson Controls kit is the professional standard for restoring stem integrity without replacing the entire valve body

York S1-031-00880-001 Control Board 30067439-890 this unit features a 1/2"This York furnace control board acts as the primary logic controller for your heating system, managing critical ignition sequences, blower motor timings, and safety limit circuits. As the direct S1 031 00880 001 replacement for legacy part numbers 031 00880 006 and S1 031 00880 701, this board offers a drop in solution that eliminates the need for wiring harness modifications in the field. For technicians performing HVAC circuit board repair, the on