Aprilaire 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