Take up to 60% off 3M Filtrete Air Filter Multi-Packs at HomeDepot.com. A package of 12 Filtrete 16 x 20 x 1 Household Dust Reduction FPR 5 Air Filters, originally $59.64, is $23.86 right now, less than $2 per filter. And this package of 12 Filtrete 16 x 20 x 1 Micro Allergen FPR 7 Air Filters, originally $119.64, is now $47.86,
