Lennox 78L19 Expansion Valve 30067439-890 the 36C03-433 handles standard heating

the 36C03-433 handles standard heating requirements while offering the low pressure drop performance required for high-efficiency operation

Using the 971-0090-47 ensures the trip points match the specific amperage range of your equipment

The Emerson Alco 806730 is a high-performance 1/4" ODF sweat refrigeration ball valve engineered for critical isolation in HVACR systems

and gas-fired combustion systems

Using it with natural gas will result in an improper flame and potential safety hazards

Lennox 78L19 Expansion Valve 30067439-890 the 36C03-433 handles standard heatingProper refrigerant metering is the backbone of any reliable HVACR system, and the Lennox 78L19 Expansion Valve is a critical component for maintaining precise superheat. Designed for high performance residential and light commercial equipment, this Thermostatic Expansion Valve (TXV) is chemically compatible with both R 410A and R 22 systems. The 78L19, which is identical to 78L1901, features a durable brass body with threaded connections, making it a