Aprilaire® Replacement Water Panel Evaporator, For Use With: 110, 220, 558, 550 and 500 Series Humidifiers, 9-7/8 Inch H x 9-5/8 Inch W x 1-11/16 Inch D, Includes: Water Panel and Instruction Sheet
- Replace annually
- Designed to last the entire heating season
- Aprilaire® engineered quality and reliability
