3 lb Beneful Grain Free Dry Dog Food for $2 at the Dollar General through 07/29! Posted by Harbor Master on 24 July 2017, 6:37 am Tweet Expired Through 07/29, the Dollar General has 3 lb Beneful Grain Free Dry Dog Food on sale for $5. $2 after the coupon below. Click here to print $3 OFF One bag of Purina Beneful Grain Free Dry Dog Food Click here to print $3 off any One Bag of Purina Beneful Grain FreeDry Dog Food(emailed coupon)