Aprilaire® Water Panel, 9-3/4 in Width, 1-3/4 in Depth, 10 in Height, Domestic
Aprilaire Water Panel 10 is the heart of your humidifier, designed specifically to deliver the proper humidity designed by Aprilaire for Aprilaire whenever you need it. Replace annually for peak performance. The Aprilaire water panel 10 fits Aprilaire Humidifier 500, 500A, 500M, 550, 550A, 558, 110 and 220.