Today only, February 15th, Home Depot has Arm & Hammer 12-Pack Air Filters for only $54.99 Shipped! (Reg. $99) There are 16 different options available with different sizes. So grab your size now while they are available at this low price. Air filters are one thing I don’t think about buying until I need it. This is so nice to buy a bulk purchase on sale and not have to buy them at full price!