2.8lb Purina One Smart Blend Dry Dog Food for $2.98 at the Dollar General! (Normally $5.95) Posted by Harbor Master on 24 June 2017, 1:24 pm Tweet Expired This coupon has Reset! You can print two more copies! The Dollar General sells Purina One 2.8lb Purina One Smartblend Dry Dog food for $5.95. Buy two and Use the Buy two and Get One Free Coupon below. Two for $5.95 or $2.98 each. Click here to Print Buy One 8 lb or smaller bag of Purina ONE SmartBlend Dry Dog Food and get one 8 lb or smaller bag of Purina ONE Dry Dog Food Free to $12.99