Aprilaire Water Panel 10
Aprilaire water panel 10 is designed to fit the Aprilaire Humidifiers 500, 500A, 500M, 550, 550A, 558, 110 and 220. Engineered to deliver the proper humidity to your home.
Aprilaire Maintenance Kit 4793
Aprilaire maintenance kit 4793 is designed to fit Aprilaire humidifier model 550, 550A and 558 to keep it operating like new.