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  • Genuine Aprilaire # 45 Humidifier Filter Pad
  • For Aprilaire model 400
  • Approximately 10" x 12-3/4" x 1-3/4"
  • Sold and priced per 2-pack
Price: Price: $43.00



Never run out of filters during the season with the Aprilaire 45 replacement cool mist humidifier water panel that comes in a convenient 2-pack.

This Aprilaire humidifier pad is the key component for generating humidity in your Aprilaire 400 humidifier system. The paper filter media absorbs water from the tray while a fan pushes air across the material. This causes air to pick up moisture where it then moves around the room.

For best performance replace your filters at least 2 times a season.

Actual Dimensions

Approximately 10" x 12-3/4" x 1-3/4"

Fits These Models

Aprilaire 400, 400A, 400M

Other Specs

Recommended Replacement: At least twice during the heating season.

Other Stock Numbers: UAPRILAIRE45O

Number of questions: 0