2-Pack Replacement Water Panel Evaporator for Aprilaire Humidifier Model 330 humidifier.  Equivalent to Water Panel Part # 30.

Note - this is a non-OEM product.  Aprilaire is no longer manufacturing this item.

Dimensions: 8 1/2 x 15 3/4 x 2

Humidifier water panels (sometimes referred to as a filter) are a regular replacement item in whole-house humidifiers. Forr 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.

Click here for instructions on changing out your water panel