- $99.60and upFiltrete Ultra Allergen Furnace Air FilterWayfair & 1 more
- $23.49Filtrete 12x24x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, Pack of 2 (Actual Size 11.719x23.72x0.85 in)Amazon
- SAVE $13.33$23.49$36.82Filtrete 18x24x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 17.81 x 23.81 x 0.81 in)Amazon
- SAVE $8.27$126.72$134.99Filtrete 23.5x23.5x1 AC Furnace Air Filter, MERV 13, MPR 1900, Premium Allergen, Bacteria&Virus Filter, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter,6-Pack (Actual Size 23.22x23.22x0.78in)Amazon