6 Tab Showing all 6 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Heartgard Plus 26-50lbsRated 0 out of 5 $290.00 Select options Heartgard Plus 51-100lbsRated 5 out of 5 $380.00 Select options Heartgard Plus up-25lbsRated 0 out of 5 $275.00 Select options Tri-Heart (Large)Rated 4 out of 5 $270.00 Select options Tri-Heart (Medium)Rated 5 out of 5 $230.00 Select options Tri-Heart (Small)Rated 0 out of 5 $190.00 Select options