ADVECTA Ultra Flea and Tick Protection for XL Dogs (+55 lbs) contains the same active ingredients as K9 Advantix II for Dogs*. This waterproof, fast-acting formula kills and repels fleas, tick, and mosquitoes, all while breaking the flea life cycle by killing flea eggs, flea larvae, and chewing lice for up to 30 days. *ADVECTA Ultra for Dogs is not manufactured or distributed by Bayer Healthcare LLC, the makers of K9 Advantix II. K9 Advantix II is a registered trademark of Bayer Healthcare LLC.
ADVECTA Ultra Flea and Tick Protection for XL Dogs (+55 lbs) contains the same active ingredients as K9 Advantix II for Dogs*. This waterproof, fast-acting formula kills and repels fleas, tick, and mosquitoes, all while breaking the flea life cycle by killing flea eggs, flea larvae, and chewing lice for up to 30 days. *ADVECTA Ultra for Dogs is not manufactured or distributed by Bayer Healthcare LLC, the makers of K9 Advantix II. K9 Advantix II is a registered trademark of Bayer Healthcare LLC.
in 28 offers
The lowest price for Advecta Ultra Flea and Tick Prevention for Dogs right now is $32.70 at desertcart.com.au, compared across 4 retailers.
The all-time low was on 2 Nov 2026. That's the lowest price we've ever tracked — a great time to buy.
Advecta Ultra Flea and Tick Prevention for Dogs
ADVECTA Ultra Flea and Tick Protection for XL Dogs (+55 lbs) contains the same active ingredients as K9 Advantix II for Dogs*. This waterproof, fast-acting formula kills and repels fleas, tick, and mosquitoes, all while breaking the flea life cycle by killing flea eggs, flea larvae, and chewing lice for up to 30 days. *ADVECTA Ultra for Dogs is not manufactured or distributed by Bayer Healthcare LLC, the makers of K9 Advantix II. K9 Advantix II is a registered trademark of Bayer Healthcare LLC.
ADVECTA Ultra Flea and Tick Protection for XL Dogs (+55 lbs) contains the same active ingredients as K9 Advantix II for Dogs*. This waterproof, fast-acting formula kills and repels fleas, tick, and mosquitoes, all while breaking the flea life cycle by killing flea eggs, flea larvae, and chewing lice for up to 30 days. *ADVECTA Ultra for Dogs is not manufactured or distributed by Bayer Healthcare LLC, the makers of K9 Advantix II. K9 Advantix II is a registered trademark of Bayer Healthcare LLC.
Prices last updated 2 Nov 2026.
Last updated at 02/11/2026 19:54:13
Advecta Ultra Flea and Tick Topical for Dogs 4-10 lbs, 2-Mo Supply
Delivery between 9–12 Nov $29
Advecta Ultra Flea and Tick Topical for Dogs 55+ lbs, 2-Mo Supply
Free delivery between 11–17 Nov
Advecta Ultra Flea and Tick Topical for Dogs 21-55 lbs, 6-Mo Supply
Delivery $39.36
Advecta Ultra Flea and Tick Topical for Dogs 55+ lbs, 4-Mo Supply
Free delivery between 11–13 Nov
| Targeted Pests | Ticks, Fleas, Mosquitoes |
| Active Ingredient | Same active ingredients as K9 Advantix II for Dogs |
| Administration Method | Topical treatment |
| Weight Range | Extra Large Dogs |
| Treatment Frequency | Monthly |
Advecta Ultra Flea and Tick Topical for Dogs 4-10 lbs, 2-Mo Supply
Delivery between 9–12 Nov $29
Advecta Ultra Flea and Tick Topical for Dogs 55+ lbs, 2-Mo Supply
Free delivery between 11–17 Nov
Advecta Ultra Flea and Tick Topical for Dogs 21-55 lbs, 6-Mo Supply
Delivery $39.36
Advecta Ultra Flea and Tick Topical for Dogs 55+ lbs, 4-Mo Supply
Free delivery between 11–13 Nov
| Targeted Pests | Ticks, Fleas, Mosquitoes |
| Active Ingredient | Same active ingredients as K9 Advantix II for Dogs |
| Administration Method | Topical treatment |
| Weight Range | Extra Large Dogs |
| Treatment Frequency | Monthly |
