Purina High Protein for $0.50 at Dollar Tree! Dollar Tree Sale Dates: NOW through 08/01 Head on over to your local Dollar Tree and check the pet food aisle for the Purina High Protein wet cans, like pictured above. Grab two, use the coupon below and get these for just $0.50 per can! Here's How To Do This Deal: Buy: Two (2) Purina Dog Chow High Protein Cans 13 oz. $1.00 each Total: View Post