3M Filtrete 20 In. x 25 In. x 1 In. Ultra Allergen Healthy Living 1550 MPR Furnace Filter Magnum lightweight ballistic poly fabric

lightweight ballistic poly fabric

Bottom and sides milled and ground

it clogs and corrodes pipes

Constructed of solid hardwood

Rimmed flat-head with nibs countersinks easily and provides a clean finished appearance

3M Filtrete 20 In. x 25 In. x 1 In. Ultra Allergen Healthy Living 1550 MPR Furnace Filter Magnum lightweight ballistic poly fabricFiltrete ultra allergen reduction filter. Captures large allergens like mold spores and pet dander, microscopic allergens like dust, smoke, smog particles, bacteria, and particles that can carry viruses. Up to 3 months of filtering performance. Meets the American Lung Association's Health House indoor air quality guidelines. Purple label.