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

Aprilaire 45

Only $17.00 per Filter
Retail: $39.99 /ea
You Save: 15%
Buy 1 - 2 for $33.99 ea.
Buy 3+ for $30.99 ea.
As low as
Retail: $39.99
You Save: 15%
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Ships by Tomorrow 9/30/2022 Home Filter Club
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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.


  • Brand: AprilAire
  • Part Number: AprilAire 45
  • Pack Size: 2
  • 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 Humidifier Water Panel Filter - Model 400, 2-Pack is correct replacement for the following model numbers:

BrandModel NumberDescription
Aprilaire400Humidifier Filter
Aprilaire400AHumidifier Filter
Aprilaire400MHumidifier Filter
Aprilaire4788 Maintenance KitHumidifier Filter
No results for {X}


Customer Reviews:

Total Reviews: 6 | Average Rating: 4.5 / 5.0

Jack Willmarth2022-03-07

Love my humidifier and these panels catch a lot of crap.

Collected by

Great product.

Collected by

It works fine.

Collected by
Kenneth Carlson2022-01-20

No additional information

Collected by

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

Collected by
Margaret Loennecker2021-11-16

Exactly what I wanted

Collected by

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