Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x20x1-In. Glass Drilling Bit Multi-directional flow

Multi-directional flow

Carbide tip

contractors and other professionals with demanding construction and other professional applications

ASTM F-877 To SDR-9 Dimensional Standards

Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x20x1-In. Glass Drilling Bit Multi-directional flow20" x 20" x 1", purple, ultra allergen filtrete filter, 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, color purple.