K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21 - 55 lbs. | 6-Mo Supply

• K9 Advantix II Large Dog 30-day treatment & prevention protects dogs 21-55 lbs. from fleas, ticks, mosquitoes, biting flies and lice
• Kills fleas within 12 hours of application
• Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
• Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
• No prescription needed