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Aprilaire Model 45 Water Panel (2-pack) for your Whole-Home Humidifier

Aprilaire Model 45 Water Panel (2-pack) for your While-Home Humidifier

Aprilaire Model 45 Water Panel (2-pack) for your Whole-Home Humidifier

Availability: In stock


Quick Overview

Aprilaire Model 45 Water Panel (2-pack) for your Whole-Home Humidifier.


The "heart" of your whole-house humidifier, the Water Panel (also known as humidifier filter, water pad, evaporator pad), should be changed at least once per heating season. The pad is constructed of an expanded aluminum honeycomb mesh that is dipped in a clay coating. This coating is able to absorb and hold water. Warm, dry air is forced through the wet pad to introduce water vapor into the home.

Product Features:

  • Factory original OEM part
  • Dimensions approximately: 10"(W) x 12-7/8"(H) x 1-1/2"(D)
  • Pad change instructions are printed on product carton

Fits the Following Humidifiers:

  • Aprilaire Humidifier Model 400
  • Aprilaire Humidifier Model 400A
  • Aprilaire Humidifier Model 400M

Replacing the humidifier pad / filter

Humidifier water panels are a regular replacement item in whole-house humidifiers. For the best performance we recommend that the Water Panel be replaced once a year, either prior to the start or at the end of the heating season. If you have especially hard water - the panel can be replaced 2 times per year.

Aprilaire pads / filters are designed to be easily replaced in Aprilaire furnace humidifiers. Simply by removing the humidifier cover, the pad / filter can be taken out and a new one slid into place. This can be performed by the homeowner in a matter of minutes. See your humidifier instructions for more information.

*There are 2 water panels included in this box.

Additional Information

Water Panel Size10"(W) x 12-7/8"(H) x 1-1/2"(D)
Model Number45