FREE Purina Dog Food or Cat Food Coupon The links in the post below may be affiliate links. Read the Full DisclosureJanuary 9, 2019 by Kim Julian Leave a Comment Hurry on over here to take the 28-Day Purina Challenge and score a completely FREE bag of Purina One Dog Food or Cat Food! Just go here (for dogs) or here (for cats) and fill out your information. That’s it! Your coupon will be sent via US mail and should arrive within 2-4 weeks and there is a limit of one per household. Follow along with all of the Coupons, Freebies and Deals by Subscribing to STL Mommy’s once daily e-mail or following along on Facebook!