Filter Filter by weight 20kg - 40kg Category Dog Flea Tick & Worming Dog Veterinary Price From To $ Sale! Simparica Green For Large Dogs (20.1-40kg) – 3 Pack, 6 Pack & 12 Pack $46.91 – $143.91 Size Choose an option3 Pack6 Pack12 Pack3 Pack6 Pack12 Pack Select options Search for products, brands and more! Search Sale! Simparica Green For Large Dogs (20.1-40kg) – 3 Pack, 6 Pack & 12 Pack $46.91 – $143.91 Size Choose an option3 Pack6 Pack12 Pack3 Pack6 Pack12 Pack Select options