This week (till 1/1/11) at Target these filters (red color) are on sale for $9.99. The price tags also show buy two get a $5 target gift card. There are $4 off two peal off coupons on most filters. The final cost is $11 plus some tax for two filters, which is about half of the regular price. If you don't get the $5 gift card during check out, the customer service will give it to you.