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Aprilaire 401 (2-Pack) - 16" x 27" x 6" MERV 10 Expandable Air Filter
This filter is a brand new genuine Aprilaire 401 air filter for the Aprilaire 2400 Media Air Cleaner.
Aprilaire recommends this filter be replaced every 6 months for maximum efficiency and effectiveness. Much of this depends on the condition of the environment it is servicing.
If you have any questions regarding this product please feel free to email [email protected] or call 1-855-932-4822 and one of our friendly Customer Experience Representatives will be more than happy to help.