Filtrete 14-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
Filtrete 14x20x1 Air Filter, MPR 1200 MERV 11, Allergen Plus Odor Reduction, 4 Filters - Walmart.com