TRI-HEART PLUS Chewable Tablet for Dogs, 26-50 lbs (Green Box), 6 Chewable Tablets, 6-Month Supply

TRI-HEART PLUS Chewable Tablet for Dogs, up to 25 lbs (Blue Box), 6 Chewable Tablets, 6-Month Supply

TRI-HEART PLUS Chewable Tablet for Dogs, 51-100 lbs (Brown Box), 6 Chewable Tablets, 6-Month Supply