New Purina Dog Food Coupons Available January 27, 2012 By: SMFMcommentShare The Savings! There are two new Purina Dog Food Coupons available to print right nowâ€¦. – Save $1.50 on 10 cans of Purina ALPO Dog Food (any size). -Â Save $2.00 on 12 single cans or 1 12-count Variety Pack of Mighty Dog. Use Zip Code 19606 if necessary.