Petlock Max Dogs

Contains the same active ingredients used in K9 Advantix® II. PetLock Max is a monthly topical treatment and preventative of ticks, fleas, mosquitoes, biting flies, & lice. Under normal conditions the product remains effective for a month. In case of severe pest infestations, retreatment once a week is permitted not to exceed 4 weeks. After successful pest control, please return to a monthly schedule.