Filtrete 20-in W x 25-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
3M Filtrete 20x25x1 Air Filter Premium Allergen Home Pollutants 2200 - NEW! | eBay
Filtrete 20-in W x 25-in L x 1-in MERV 14 2500 Smart Premium Allergen and Ultrafine Particle Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com