$20.59 $20.59 View... Advantage Purple Cats Over 8.8lbs (4kg) - 4 Pack $27.91 $27.91 View... Advocate Cats Over 8.8lbs (4kg) - 3 Pack $25.91 $25.91 View... Advocate Cats Under 8.8lbs (4kg) - 3 Pack $47.86 $47.86 View... Advocate Cats Over 8.8lbs (4kg) - 6 Pack $49.19 $49.19 View... Advocate Cats Under 8.8lbs (4kg) - 6 Pack $21.92 $21.92 View... Advantage Blue Dogs Over 55lbs (25kg) - 4 Pack $35.89 $35.89 View... Advocate Dogs Over 55lbs (25kg) - 3 Pack $65.16 $65.16 View... Advocate Dogs Over 55lbs (25kg) - 6 Pack $21.25 $21.25 View... Advantage Red Dogs 22-55lbs (10-25kg) - 4 Pack $29.90 $29.90 View... Advantix Dogs Over 55lbs (25kg) - 4 Pack $29.90 $29.90 View... Advantix Dogs 22-55lbs (10-25kg) - 4 Pack $33.89 $33.89 View... Advocate Dogs 22-55lbs (10-25kg) - 3 Pack $55.18 $55.18 View... Advocate Dogs 22-55lbs (10-25kg) - 6 Pack $40.54 $40.54 View... Revolution Teal Dogs 44-88lbs (20-40kg) - 3 Pack $21.25 $21.25 View... Advantage Aqua Dogs 8.8-22lbs (4-10kg) - 4 Pack $27.24 $27.24 View... Advantix Dogs 8.8-22lbs (4-10kg) - 4 Pack $29.90 $29.90 View... Advocate Dogs 8.8-22lbs (4-10kg) - 3 Pack $49.19 $49.19 View... Advocate Dogs 8.8-22lbs (4-10kg) - 6 Pack