February 17, 2009 No Comments Free $5 Coupon for Halo Pet Food Free $5 Coupon for Halo Pet Food Sign up for exclusive offers, pet care information, new product developments and more — plus a printable $5.00 coupon just for signing up. That’s good for a couple FREE cans of Halo! Free $5 Coupon for Halo Pet Food – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.