21x21x4 (20.5x20.5x3.75) Accumulair Emerald Filter MERV 6

$14.69

AirFilters.com$14.69Buy

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From AirFilters.com

AccumulairA(R) Emerald MERV 6 8 times more efficient than fiberglass filters Durable construction that will not warp or leak under normal operating conditions Excellent for high-velocity systems and maximum airflow Lasts up to three months