Please make sure the size is right before you buy!
Will do discounts if you want more than one 4-pack.
Pack of four new 3M Filtrete air filters with a MERV rating of 12 and a size of 12x12x1 inches. The filters use HEPA-Type filtration technology and are designed to capture allergens, bacteria, and viruses. They have a filter life of three months and are suitable for use in HVAC furnace systems.