Walmart has their Filtrete Allergen Defense Micro Particle Reduction HVAC Furnace Air Filter that’s 18x24x1 3 pack for only $15.88! Replacing your filters keeps your air conditioning and heating systems running efficiently.
Don’t forget if, available in your area, you can opt to pick your purchase up in-store to avoid any shipping charges. Otherwise shipping is free when you spend $35 or more.
