and the 14004211-001 feedback spring kit

the LP pilot assembly

used for modulating or two-position airflow control in commercial and residential HVAC systems

Its compatibility with standard wire guard models like the GRD10 series makes it a versatile staple for any contractor's service van during thermostat protection retrofits

ensuring gas flow only occurs during active draft

Armstrong Furnace R104519-02 Ball Valve 326070-701 and the 14004211-001 feedback springThe Armstrong Furnace R104519 02 Ball Valve is a high performance 7 8 inch service valve engineered for precision fluid regulation in residential and commercial HVAC systems. Constructed from heavy duty brass, this genuine OEM replacement part provides superior corrosion resistance and durability for demanding heating and cooling applications. As the direct successor to legacy part numbers 77W34 and 77W3401, it ensures seamless compatibility and