$1 Off One 3.5 lb or larger bag of Purina Dog Chow Dog Food or Puppy Chow Posted by Harbor Master on 14 June 2017, 9:28 am Tweet Ex. 30 days from print(Print limit is two) Click here to print $1 Off One 3.5 lb or larger bag of Purina Dog Chow Dog Food or Purina Puppy Chow Puppy Food, any variety If you want to purchase a larger bad, there is an Ibotta Rebate available. Submit for $1 cash back from Ibotta on Purina Dog Chow 16.5lb bag or larger (Valid at Walmart)