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Aprilaire 45 Humidifier Water Panel Filter - Model 400, 2-Pack

Aprilaire 45
$15.00 per Filter
Retail: $39.99
You Save: 25%
Buy 1 - 2 for $29.99 ea.
Buy 3+ for $24.99 ea.
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FiltersFast UA45WPRP Replacement for Aprilaire 45 - 400 2-Pack

$12.48 per Filter
Retail: $29.99
You Save: 17%
Buy 1 - 2 for $24.95 ea.
Buy 3+ for $22.95 ea.
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6 - 12 Months
Filter Life
6 - 12 Months
Prevents Mold & Fungus
Alleviate Cold Symptoms
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Product Information
Aprilaire 45
FiltersFast UA45WPRP

Never run out of filters during the season with the Aprilaire 45 replacement humidifier water panel. As a key component in generating humidity in your Aprilaire 400 humidifier system, the Aprilaire 45's filter media absorbs water from the tray while a fan pushes air across the material. This creates moisture in the air which covers the entire room! Aprilaire recommends replacing the Aprilaire 45 every 6-12 months for optimal performance and efficiency.


  • Part Number: Aprilaire 45
  • Filter Life: 6-12 months
  • Includes: (2) water panel evaporators
  • Dimensions: 10" x 12-3/4" x 1-3/4"

Compatible Models:

The Aprilaire 45 is correct replacement for the following model numbers:

  • 400
  • 400A
  • 400M
  • 4788 Maintenance Kit


Customer Reviews:

Total Reviews: 4 | Average Rating: 4.2 / 5.0

It works fine.

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No additional information

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Itís fine for what it does. There are other brands that are readily available in big box stores that will do the same thing.

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Exactly what I wanted

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