Maintenance Kit for 600, 600A & 600M
Aprilaire Humidifier Maintenance Kit 4839 includes everything you need to keep your Aprilaire Humidifier 600, 600A and 600M operating like new. Includes Water Panel - 35, Scale Control Insert - 4330, Water Distribution Tray - 4331, Feed Tube and Compression Sleeve - 4335, Orifice - 4231, Drain Spud - 4223, Inline Strainer - 4004, Owner's Manual.