The Aprilaire 413 (2-Pack) replacement filter provides MERV 13 particulate filtration performance without the need for installing pleat spacers like the old Space-Gard 201/401 media. The Aprilaire 413 filter simply pops up to the proper size and slides directly into several of the Aprilaire filter cabinets.
You will need to change this filter about twice a year.
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|Dimensions (Inches)||16 x 27|