3M Filtrete 12 In. x 12 In. x 1 In. Ultra Allergen Healthy Living 1550 MPR Furnace Filter Trimplank Large spiral bevel gear provides

Large spiral bevel gear provides long transmission life

AT-XP adhesive dispenses easily in cold or warm environments with little to no odor

PROVA Corner - 4 inside

Requires only 2 coats over metal

3M Filtrete 12 In. x 12 In. x 1 In. Ultra Allergen Healthy Living 1550 MPR Furnace Filter Trimplank Large spiral bevel gear providesFiltrete 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.