Aprilaire 45 – 400 Humidifier Panel Filter

$35.00 $29.95

Never run out of filters during the season with the Aprilaire 45 replacement cool mist 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.

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Aprilaire 45 Filter Specifications:

  • Part Number: Aprilaire 45
  • Service Life: 6 – 12 months
  • Includes: (2) water panel evaporators
  • Dimensions: 10″ x 12-3/4″ x 1-3/4″
  • These are genuine factory replacement Aprilaire 400 evaporator water panel humidifier filters, also known as Aprilaire 45 water panel filters and April Air 45 filters.

The Aprilaire 45 is the correct replacement water panel evaporator for the following humidifier models:


  • 400
  • 400A
  • 400M


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