4792 : Aprilaire Humidifier Maintenance Kit, for 500 series

Aprilaire 4792 Maintenance Kit with Water Panel 10 for Humidifier Model 500, 500A, and 500M. This genuine replacement water panel was designed and manufactured in the U.S.A. by Aprilaire – the leader in indoor air quality solutions, to optimize the performance of your Aprilaire Humidifier Model: 500, 500A, 500M
PERFECT APRILAIRE FIT Water panel dimensions: 10" H x 9.75" L x 1.75" W

Includes:
Water Panel 10
Scale Control Insert 4640
Water Distribution Tray 4331
Feed Tube and Compression Sleeve 4335
Orifice 4231
Drain Spud 4223
Inline Strainer 4004
Owner's Manual

For optimal performance, replace water panel annually.