3M Filtrete 321DC-6 (6-Pack) - 18" x 24" x 1" Dust Reduction Filter

3M Filtrete 321DC-6 (6-Pack) - 18" x 24" x 1" Dust Reduction Filter

These filters are brand new genuine 3M Filtrete Dust Reduction Filters.

3M Filtrete recommends this filter be replaced every 12 months for maximum efficiency and effectiveness. Much of this depends on the condition of the environment it is servicing.

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