Home Depot [homedepot.com] is having one other sale on the 12 pack Arm & Hammer Odor Allergen and Pet Dander Control AC & Furnace Filter for $49.50 on majority of sizes. Click hyperlink for all sizes. The 12x20x1 is the most cost effective at $44.50
This matches the value of the earlier entrance web page deal a few months in the past.
