FitCheckrCompatibility guide
Humidifier Filter and Wick Compatibility Checklist
How to match portable humidifier wicks, whole-house water panels, and mineral-control parts by exact model.
Humidifier replacement parts are not universal. Portable cool moisture units often use a wicking filter such as Honeywell HAC-504, while furnace-mounted whole-house units may use a rigid water panel such as AprilAire 35. Match the humidifier model first, then confirm the filter code, water panel number, and replacement interval.