M Filtrete 20"x20"x1", AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack
Filtrete 20-in W x 24-in L x 1-in MERV 12 1500 MPR Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
Filtrete by 3M, 16x20x1, MERV 13, Ultimate Allergen Reduction HVAC Furnace Air Filter, 1900 MPR, 4 Filters
Filtrete 20-in W x 20-in L x 1-in MERV 11 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter (2-Pack) in the Air Filters department at Lowes.com
Filtrete Dust Reduction Pleated Air Filter, 3 Months, Green, 20x20x1-In. | True Value
Filtrete 20x20x1 Air Filter, MPR 300, MERV 5, Clean Living Basic Dust 3-Month Pleated 1-Inch Air Filters, 6 Filters - Amazon.com