$20.33 $20.33 View... Advantage Purple Cats Over 8.8lbs (4kg) - 4 Pack $27.56 $27.56 View... Advocate Cats Over 8.8lbs (4kg) - 3 Pack $25.59 $25.59 View... Advocate Cats Under 8.8lbs (4kg) - 3 Pack $47.27 $47.27 View... Advocate Cats Over 8.8lbs (4kg) - 6 Pack $48.58 $48.58 View... Advocate Cats Under 8.8lbs (4kg) - 6 Pack $21.65 $21.65 View... Advantage Blue Dogs Over 55lbs (25kg) - 4 Pack $35.44 $35.44 View... Advocate Dogs Over 55lbs (25kg) - 3 Pack $64.35 $64.35 View... Advocate Dogs Over 55lbs (25kg) - 6 Pack $20.99 $20.99 View... Advantage Red Dogs 22-55lbs (10-25kg) - 4 Pack $29.53 $29.53 View... Advantix Dogs Over 55lbs (25kg) - 4 Pack $29.53 $29.53 View... Advantix Dogs 22-55lbs (10-25kg) - 4 Pack $33.47 $33.47 View... Advocate Dogs 22-55lbs (10-25kg) - 3 Pack $54.50 $54.50 View... Advocate Dogs 22-55lbs (10-25kg) - 6 Pack $40.04 $40.04 View... Revolution Teal Dogs 44-88lbs (20-40kg) - 3 Pack $20.99 $20.99 View... Advantage Aqua Dogs 8.8-22lbs (4-10kg) - 4 Pack $26.90 $26.90 View... Advantix Dogs 8.8-22lbs (4-10kg) - 4 Pack $29.53 $29.53 View... Advocate Dogs 8.8-22lbs (4-10kg) - 3 Pack $48.58 $48.58 View... Advocate Dogs 8.8-22lbs (4-10kg) - 6 Pack