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Seresto 8 Month Flea & Tick Collar for Large Dogs & Puppies (over 18 pounds)

By Seresto
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  • Breed Size
    Small, Medium, Large, Giant
  • Lifestage
    Puppy, Adult
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With its innovative delivery system, the Seresto Flea & Tick Collar for Large Dogs & Puppies (over 18 pounds) offers a breakthrough in tick and flea control for dogs for 8 months. Inside the unique polymer matrix of the Seresto collar are two active ingredients: imidacloprid, which has been used in products recommended by veterinarians for years to control flea infestations, and flumethrin, which effectively repels and kills ticks, larvae and nymphs. These ingredients work together in this unique flea collar to provide dual action against fleas and ticks like no other treatment!

Key Benefits

  • Flea collar for dogs 7 weeks or older over 18 pounds
  • Kills fleas and repels and kills ticks
  • Repels ticks to prevent transfer of organisms that cause disease
  • Non-greasy, odorless and easy to use
  • Water-resistant protection
  • No need to remember monthly applications
  • 27.5-inch adjustable collar length

See all items by Seresto

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Customer Reviews

Rated 4.7 out of 5 by 935 reviewers.
Rated 5 out of 5 by Seresto Collars WORK We live in Connecticut where ticks and Lyme disease are rampant. I'm not a fan of the flea drops because of the side effects, including the "skin crawling" sensation my lab would experience. For me, the Seresto flea collars are the reliable and safer choice. We've been using the Seresto Large Dog flea collar for almost two years with my 65lb lab and the ticks I have found have either been dead or just crawling on him, even after a day in the woods. Proof enough for me the flea collar is working if the ticks aren't biting him or die before they become engorged. Now that we've added a second rescue pup to our family, I'm back for another collar because I know it will keep both of my dogs safer. I don't have to worry about the side effects of the drops or them licking insecticide off each other or themselves. The collar is also a much more economical purchase than the drops. Chewy has a great price on this collar (as with everything) and their customer service is exceptional. July 26, 2016
Rated 5 out of 5 by A great value I have 7 dogs in my home. I have been struggling for years with the effectiveness, cost and difficulty of applying topical flea/tick treatments. My dogs hated them! Pill treatments didn't work well either. I first purchased Seresto from a company in the UK (before finding chewy.com) to test it with 2 of my dogs. Within days their fleas were gone and their skin irritations started to clear up. It was like the miracle I had been looking for. We also had a problem with ticks, but not anymore. And by the way, mine actually did last the entire 8 months advertised. Because it really works for me, it's the most cost effective solution I've found to date (it costs about $5/month per collar from chewy.com). The collars contain the same dosage so I'm able to split one large collar into 2 smaller ones (the only differences are the large collar is wider and longer than the small). No more stressful applications of topicals for any of us. I hope I'll never have to use anything else. July 21, 2016
Rated 5 out of 5 by Flea Free These are excellent collars. We bought this one for a 45 lb mixed Bassett. We have 3 more dogs all over 50 lbs. we do not live in woods but fleas have been a problem over the years. We used them before but the dogs chewed them off each other as they were playing. So we just bought one since he seems to be the only one the fleas like. He is not chewing or scratching and the collar is still on a month later. We used the same collars made for cars for one who was scratching and digging and just eat up with fleas. Within a few days all the fleas were gone. We prefer these over the topicals anytime. As long as the dogs don't chew them off each other it should work. We have never found ticks on them so I can't say about that. But for fleas it does the job for where we live. September 22, 2016
Rated 5 out of 5 by Awesome Product Highly Recommend! I highly recommend this product to anyone. One of our dogs gets deathly ill with oral flea products and tried this product at the recommendation of our veterinarian--she was right simply a great alternative. Seresto is not an alternative it is the only product we use for her, more importantly it works, it is affordable and less expensive than any of the oral medications without the side effects. I have recommended this product to more than 25 friends and relatives and not one of them have been disappointed with the product. My only negative about Seresto? It does not offer bling other than a few reflectors for night safety. When she steps out on the town or farm she is without fleas and ticks but not as stylish as I think she could be. Living on a farm she is exposed to a lot of flea and tick and its a non-issue. But when out on the town I wish it was maybe in a color option at least. Great product I highly recommend Seresto! July 19, 2016
Rated 5 out of 5 by Unbelievably Effective I had a severe flea infestation in the yard and house. This place probably qualifies as a superfund site with all the spraying I did. The drops and sprays for my Luci weren't cutting it either, and I couldn't get rid of them. My friend Dean pointed me here and I ordered. Just a few days later it arrived, and this was the standard shipping. Just too cool for service, Chewey. Y'all are great! I put the collar on Luci. In two hours, the fleas on my dogs head were gone, two days her body was clear of them, and ten days later the continuous battle with fleas has finally been won for the first time in ten years. Zero fleas here or on Luci. She's not scratched once and it's Seresto that did it. Buy this collar once and you'll never buy any other flea control products ever again. You won't need to, I promise! Phil August 29, 2016
Rated 4 out of 5 by So far so good Its only been a couple weeks so cant say about longevity but the fleas were gone in two days. I have 3 big dogs a thick,long hair shephard, very short hair pitty and a hound, reg hair. I live in the country with woods close so they get into areas that have fleas and will bring them home. This year was like overnite attack of those buggers! I cant afford the monthly anymore so had heard good things about these collars and even if they last for just 5 months they will be a bargain as Chewy had them for $40.!! The biggest complaint i see with these is that they dont stay on well. I fixed that problem! After you put it on DONT cut the excess off! The end will actually stay curled and wont be able to slip thru. You can also slip the end under the collar and due to length it will stay put.I have had to tighten once on my short hair dog but was never any chance of it coming off. So this collar does the job of killing fleas, we'll see how long it lasts. June 2, 2016
Rated 4 out of 5 by There are no buckles on this product. This product has a unique fastening system, that is easy to use. I like that it is good for eight months, and can stay on while swimming and bathing my pets. This is my first time using this product but with topical drop products my pets all have acquired tick born disease, I am hoping the collar will prevent further disease. My dogs love to swim so I may only get five months out of the collars but if they work the cost is less than my previous cost for product and vet bills. September 19, 2016
Rated 5 out of 5 by Best. EVER! I ADORE the seresto collars. We live in Indiana, and around a ton of ponds and wooded areas. it's great to not see any fleas for ticks for 8-ish months. It's no mess. Easy to use. It actually works. In the long run, it's cheaper than most other flea prevention products. I can't say enough good things about it. Also, it requires no maintenance. It's great that I only have to replace it every 8 months. September 22, 2016
  • 2016-09-23 T06:16:35.140-05:00
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