Aprilaire 4837 Maint Kit 322056-301 This thermostatic expansion valve (TXV)

This thermostatic expansion valve (TXV) features a 1/2-inch ODS inlet and a 5/8-inch ODS outlet

Operating on a regulated 5VDC supply voltage

This includes maintaining specific clearances from windows

Key Benefits: Precision Temperature Control: Features an L85-18F rating to accurately trigger defrost cycles and prevent system freeze-ups

simplifying wiring and improving long-term reliability

Aprilaire 4837 Maint Kit 322056-301 This thermostatic expansion valve (TXV)Keep your whole home humidification system running at peak performance with the genuine Aprilaire 4837 Maintenance Kit. Specifically engineered for Aprilaire 560, 560A, and 568 models, this comprehensive humidifier tune up kit includes all the essential components to restore factory level efficiency. Over time, internal parts like the water panel and feed tube can become brittle or clogged with mineral deposits, leading to reduced output or leaks. By