Filtrete 20-in W x 20-in L x 1-in MERV 13 1900 MPR Premium Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
3M Filtrete 2200 Elite Allergen & Home Pollutants - 20x20x1
Filtrete by 3M 20x25x1, MERV 13, Ultimate Allergen Reduction HVAC Furnace Air Filter, 1900 MPR, 4