Filtrete™ Dust Reduction Filter 302-4, MPR 300, 20 in x 20 in x 1 in (50,8 cm x 50,8 cm x 2,5 cm), 4/case

The Filtrete™ Dust Reduction Filter attracts and captures particles such as dust, lint, and dust mite debris in your air. For optimum performance, the filter should be changed every 90 days.