Reduced Maintenance: Replaces manual petcocks with a consistent

it ensures exact fitment and alignment for Nordyne furnace models

This stem uses 5/16-18 NPT threads on both ends

this Ranco 9530N1601-070U temperature control provides the durable

Lochinvar & A.O. Smith 100166242 Pressure Switch 30067439-890 Reduced Maintenance: Replaces manual petcocksThe Lochinvar & A. O. Smith 100166242 Pressure Switch is a critical safety component designed for precise draft and combustion monitoring in high efficiency heating systems. Set to a fixed . 27" WC (Water Column) trip point, this SPDT (Single Pole Double Throw) switch ensures that the inducer motor or blower is generating the correct static pressure before allowing the ignition sequence to proceed. As a veteran tech, you know that a failing switch