Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 14x20x1-In. Surface Mount they are made from heavy-duty

they are made from heavy-duty galvanized steel to reduce the potential for rusting

Clear Lid For Monitoring

Features grinding geometry for 35% sharper edge

Silicone oils protect and enrich tires to reveal long-lasting extreme shine

No Adapters Required***

Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 14x20x1-In. Surface Mount they are made from heavy-duty14" x 20" x 1", purple, ultra allergen filtrete filter, 3 month filter is 90% effective at capturing large allergens like mold spores & pet dander, captures microscopic allergens like dust, smoke & smog, captures bacteria & particles that can carry viruses, meets the guidelines of the American lung association health house program. Mpr rating 1500, filter lasts for 90 days.