BAYER A once a month topical flea treatment for dogs and puppies 7 weeks and older. It kills 98–100% of adult fleas within 12 hours of application. And it kills reinfesting fleas within two hours. One convenient application of Advantage keeps working for up to 30 days a month. Stops biting in 3–5 minutes. Kills adult fleas fast — before they lay eggs. Kills flea larvae — before they develop into biting fleas. Breaks the flea lifecycle at multiple stages. P3-F1 1-10 lbs, 4 pack (Green) P3-F1-1$38.09 1-10 lbs, 6 pack (Green) P3-F1-2$51.50 11-20 lbs, 4 pack (Teal ) P3-F1-3$38.22 11-20 lbs, 6 pack (Teal ) P3-F1-4$53.06 21-55 lbs, 4 pack (Red) P3-F1-5$39.55 21-55 lbs, 6 pack (Red) P3-F1-6$57.58 56-100 lbs, 4 pack (Blue) P3-F1-7$40.58 56-100 lbs, 6 pack (Blue) P3-F1-8$56.86 Questions? Call toll free 1-800-892-6978 or email us at info@animalhealthusa.com