The BOGO Purina coupon has reset! That means you can print it again, even if you’ve previously maxed out. Use the coupon to score 50% off Purina Dog Chow Naturals at Target. This coupon is valid on bags that are four pounds or smaller. Target sells four-pound bags for $4.99. Use the BOGO coupon to score two bags of dog food for only $2.50 each!