Description
Lennox 42W37 TXV 30067439 890 The ASCO 8221G23 Solenoid Valve The ASCO 8221G23 Solenoid Valve is a high performance 2 way normally open solenoid valve specifically engineered for reliable fluid control in water service applications System Calibration: Restores the pilot's ability to maintain tight temperature tolerances in heat exchanger applications