Get a free 5lb. bag of Hill’a Scince Diet Light pet food with after rebate – up to a $13.95 value! Print this page to get your rebate and follow the instructions to redeem and get a 5lb bag of Hill’a Science Diet Light pet food for free! Receipt must be dated no later then 4/30/12. Rebate must be postmarked by 5/31/2012. I’ve seen this sold at Petsmart and Petco.