Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x20x1-In. Cordless Cut-Off Tools Designed with a variable helix

Designed with a variable helix with an aggressive 35 Deg

can be surface

4- 1/4-Inch Channel Width

Complies With California Lead Free Law AB1953

Pleated Furnace Filter, Ultra Allergen Reduction, 3-Month, Purple, 20x20x1-In. Cordless Cut-Off Tools Designed with a variable helix20" 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.