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Tier1 Humidifier Filters
These Tier1 replacement water panels fit Aprilaire whole-house humidifiers: the #10 for models 110, 220 and the 500 series, and the #35 for the 600 and 700 series. They are compatible replacements, not genuine Aprilaire. Aprilaire's guidance is to replace either panel annually.
Common questions
What is a humidifier water panel?
A humidifier water panel is the pad inside a whole-house humidifier that water flows over, so moisture can evaporate into your home's air. The #10 and #35 are the panel sizes used in Aprilaire's 110, 220, 500, 600 and 700 series humidifiers.
How often should a water panel be changed?
A humidifier water panel should be changed once a year, according to Aprilaire. Mark your calendar when you install a new #10 or #35 so you know when the next one is due. For other sizes, browse all humidifier water panels.
