Aerostar 19.875x21.5x1 Air Filter MERV 13 (For Allergies, Dust, Lint, Mold, Pet Dander, Smoke, Smog & Bacteria) - Electrostatic MPR 1500 - 1900 & FPR 10 - Pleated AC Furnace Air Filters - Pack of 6

Aerostar 19 7/8 x 21 1/2 x 1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 7/8"x21 1/2"x3/4")

Aerostar 12x24x1 Air Filter MERV 8 (For Allergies, Dust, Lint, Mold & Pet Dander) - Electrostatic MPR 600 & FPR 5 - Pleated HVAC AC Furnace Air Filters - Pack of 6

Aerostar 20x25x1 Air Filter MERV 13 (For Allergies, Dust, Lint, Mold, Pet Dander, Smoke, Smog & Bacteria) - Electrostatic MPR 1500 - 1900 & FPR 10 - Pleated HVAC AC Furnace Air Filters - Pack of 6