Filtrete 16-in W x 20-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
AIR HANDLER, 16x20x1, MERV 8, Pleated Air Filter - 495J16|495J16 - Grainger
Free Shipping on 16x20x1 MERV 8 AC Air Filters
HDX 16 in. x 20 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack) HDX3P5-011620 - The Home Depot
Amazon.com: UBeesize Reusable 16x20x1 Air Filter(6-Pack),Upgrade AC/HVAC/Furnace Filter,MERV 8,MPR 700,Easy to Close/Open,1xReusable ABS Frame+6xReplaceable Filter(Actual Size: 15.63x19.72x0.87Inch) : Tools & Home Improvement