Appliance · AprilAire

AprilAire 500 Whole-House Humidifier (500A, 500M)

verified 2026-10-13 Specs from AprilAire shop - 10 Replacement Water Panel. Also known as: aprilaire 500, aprilaire 500a, aprilaire 500m.

Specs

typewhole-house humidifier

Takes

  • humidifier pad AprilAire #10 water panel
    Water panel for AprilAire 110, 220, 500, 550 and 558 series whole-house humidifiers (incl. A/M/KZ variants).

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Good to know
  • Nominal 10 x 10 x 2 in (actual 9.75 x 9.5 x 1.75); smaller than the #35 and #45 panels.

What fits the AprilAire 500 Whole-House Humidifier (500A, 500M)?

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.