New Halo Coupons! Posted on June 24, 2011June 2, 2013 by Krista HALO has released some new great coupons! $1 off any can Spot’s Stew $2 off any Grooming product $2 off any bag Spot’s Stew $1.50 off any jar Treats $2.50 off NEW grain-free bag for cats $2.50 off NEW small breed bag for dogs