Save on Arm & Hammer air filters at Walmart.com. We found the four-pack of 12″ x 24″ Arm & Hammer Pet Fresh Air Filters on sale for just $8.88, or $2.22 apiece.
This deal is only available online and will be shipped to your home for free with an order of $35 or more. The delivery estimate is about 26 days from the date you place the order. Store pickup is not available.

Free shipping on orders of $35+ or free store pickup (around 26 days)
Final Price: $8.88, or $2.22 each