Filtrete MG20X20AMR Aftermarket Refills For 500 Dust & Pollen Filters-

Allergen Reduction filters provide an easy way to help reduce airborne allergens in your home. They capture large airborne particles from the air that passes through them, including dust, pollen, and mold spores.

• Each package contains 2 refills.
• For use with 3M Refillable Frame Filter.
• Pack 4.
• Dimension 20 x 20 x 1 in.