🐶 Keep your pup pest-free and happy! Fleas don’t stand a chance—kills on contact! Playtime approved—no worries about water! Gentle on noses, tough on pests! Convenience at your fingertips! Trust the experts for your furry friend! 1-Mo Supply Waterproof Kills Fleas in 12h K9 Advantix II is a vet-recommended topical treatment designed for medium dogs weighing 11-20 lbs. This 30-day supply effectively protects against fleas, ticks, mosquitoes, and more, killing fleas within 12 hours of application. The formula is easy to apply, waterproof after 24 hours, and fragrance-free, ensuring comfort for your pet without the need for a prescription.