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The Field Controls FLEX-7 Flex Filter, MPN 46600404, is designed to replace Aprilaire filters 401, 410, and 413. It is suitable for use in whole-house systems including furnaces and air handlers. This filter is constructed from fiberglass and features a MERV 11 rating, which ensures effective filtration of airborne particles.
This filter fits most major brands and installs easily, providing a quick solution for air quality needs.
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