$20.09 $20.09 View... Advantage Purple Cats Over 8.8lbs (4kg) - 4 Pack $27.23 $27.23 View... Advocate Cats Over 8.8lbs (4kg) - 3 Pack $25.28 $25.28 View... Advocate Cats Under 8.8lbs (4kg) - 3 Pack $46.70 $46.70 View... Advocate Cats Over 8.8lbs (4kg) - 6 Pack $48.00 $48.00 View... Advocate Cats Under 8.8lbs (4kg) - 6 Pack $21.39 $21.39 View... Advantage Blue Dogs Over 55lbs (25kg) - 4 Pack $35.02 $35.02 View... Advocate Dogs Over 55lbs (25kg) - 3 Pack $63.58 $63.58 View... Advocate Dogs Over 55lbs (25kg) - 6 Pack $20.74 $20.74 View... Advantage Red Dogs 22-55lbs (10-25kg) - 4 Pack $29.18 $29.18 View... Advantix Dogs Over 55lbs (25kg) - 4 Pack $29.18 $29.18 View... Advantix Dogs 22-55lbs (10-25kg) - 4 Pack $33.07 $33.07 View... Advocate Dogs 22-55lbs (10-25kg) - 3 Pack $53.84 $53.84 View... Advocate Dogs 22-55lbs (10-25kg) - 6 Pack $39.56 $39.56 View... Revolution Teal Dogs 44-88lbs (20-40kg) - 3 Pack $20.74 $20.74 View... Advantage Aqua Dogs 8.8-22lbs (4-10kg) - 4 Pack $26.58 $26.58 View... Advantix Dogs 8.8-22lbs (4-10kg) - 4 Pack $29.18 $29.18 View... Advocate Dogs 8.8-22lbs (4-10kg) - 3 Pack $48.00 $48.00 View... Advocate Dogs 8.8-22lbs (4-10kg) - 6 Pack