High Value: $3 Off One bag of Purina Beneful Dry Dog Food ($2.48 at Walmart!) Posted by Harbor Master on 13 June 2018, 7:55 pm Tweet The coupon Ex. 30 days from print. The print limit is two) Click here to print a coupon for $3 off One Bag of Purina Beneful Dog Food, any size, any variety or carton of Purina Beneful Simple Goodness Dog Food (any variety) Walmart sells 3.5 lb Beneful for $5.48. $2.48 after the coupon.