HQRP Water Filter Compatible with Aprilaire 10 fits Aprilaire 110, 220, 500, 500A, 500M, 550, 550A, 558 Humidifiers

HQRP Humidifier Water Filter Replacement for Aprilaire 10; | Compatible with Aprilaire 110, 220, 500, 500A, 500M, 550, 550A, 558 Humidifiers; | Dimensions: 9 1/2 inches x 9 7/8 inches x 1 5/8 inches; Universal replacement for many brands and models; | Heavy duty metal filter pad - The heavy-duty aluminum mesh frame holds its shape over the life of the water panel as the porous ceramic-type coating absorbs water and maintains the proper level of hydration to support the evaporation process. | HQRP standard replacement humidifier filter keeps your humidifier running efficiently to maintain proper humidity throughout the home; For optimum performance, replace panel once every 6 months or more often in hard water areas.