Air Purifier

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Aprilaire 401 Air Filters


Aprilaire 401 Air Filters

Aprilaire 401 Air Filters are designed for best efficiency and are the heart of your air purifier. 

  • Aprilaire Filter for the Aprilaire Model 2400 Air Purifier

  • High-efficiency MERV 10 rating

  • Lasts one to two years (Depending on the operation of your heating and/or air conditioning system)

NEW UPGRADE KIT: Get an easy-to-install upgrade filter kit for the Model 2400 and remove nearly two times more contaminants from your home. If you already installed the upgrade kit to your Aprilaire Model 2400 air purifier


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