Appliance · AprilAire

AprilAire 620 Whole-House Humidifier (620A, 620M)

verified 2026-10-13 Specs from AprilAire shop - HYDROL HydroCore Water Panel Cartridge. Also known as: aprilaire 620, aprilaire 620a, aprilaire 620m.

Specs

typewhole-house humidifier

Takes

  • humidifier pad AprilAire HydroCore L cartridge (HYDROL)
    One-piece HydroCore water panel cartridge for the AprilAire 620 and 720 humidifiers.

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Good to know
  • Not a flat water panel: the older 600/700 models take the #35 panel instead.
  • AprilAire: replace the HydroCore every 12 months. A hard-water version (HYDRLH) is also sold.

What fits the AprilAire 620 Whole-House Humidifier (620A, 620M)?

1 parts and accessories in the graph work with this model. OEM parts first.

humidifier pad

Informational only. Confirm with the manufacturer before buying or installing. Spotted a mistake? Report it.