Filtrete 20x20x1 Smart Air Filter, MPR 2200 MERV 13, 1-Inch Premium Allergen & Home Pollutant Air Filters for AC and Furnace, 2 Filters - Amazon.com
Filtrete 20-in W x 25-in L x 1-in MERV 14 2500 MPR Premium Allergen and Ultrafine Particle Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
3M Filtrete 2200 Allergen & Home Pollutants Air Filter 3 Pack 20x20x1 New | eBay
6 Filtrete 20x20x1 Air Filter, MPR 2200, MERV 13 - general for sale - by owner - craigslist
6 Filtrete 20x20x1 Air Filter, MPR 2200, MERV 13 - general for sale - by owner - craigslist