20x20x1 MERV 8 Pleated Air Filters - 20 x 20 x 1 (6-Pack) - Premium Furnace, Air Conditioner and HVAC Filter - Blocks Dust, Mites, Pet Dander, Lint, Pollen - Universal Compatibility - MervFilters

Simply 20x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 19.75"x19.75"x0.75") DUST, Pet, & Allergy Control

Aerostar 20x20x1 MERV 13 - 6 Count - Pleated HVAC, Furnace & Air Conditioner Filters - Removes Bacteria, Dust, Cold & Flu Germs, Lint, Mold, Pet Dander, Allergy-Causing Pollen, Smog, Smoke & Viruses

Aerostar 12x12x1 MERV 13 - 6 Count - Pleated HVAC, Furnace & Air Conditioner Filters - Removes Bacteria, Dust, Cold & Flu Germs, Lint, Mold, Pet Dander, Allergy-Causing Pollen, Smog, Smoke & Viruses