Large Dog Seresto Flea & Tick Collar

Item #E8AH

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Large Dog Seresto Flea & Tick Collar

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Seresto Dog Collar for large dogs is the new alternative to monthly topical flea and tick control. Non-greasy, odorless, easy to use, water-resistant, and lasts up to 8 months in dogs. Measure: 27.5" L Read More

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Seresto Dog Collar, Large

Seresto Dog Collar kills fleas within 24 hours and ticks within 48 hours after initial application. Re-infesting fleas are killed within two hours and re-infesting ticks on dogs are killed in as quickly as six hours.As the active ingredients wear off the dog, Seresto replenishes the hair and skin with a new supply of active ingredients, providing continuous protection against fleas and ticks for eight months. The Seresto Dog Collar repels ticks on dogs, preventing the tick from attaching and transmitting disease-causing organisms. 

Seresto Dog Collar Benefits:

  • no need to remember monthly applications
  • non-greasy, odorless, easy to use, and water-resistant*
  • active ingredients imidacloprid and flumethrin provide dual action against ticks and fleas
  • BayerÂ’'s Polymer Matrix is designed to slowly and continuously release the active ingredients for 8 months
  • repels ticks on dogs and prevents diseases
  • for use on dogs and puppies 7 weeks and older
  • includes optional reflector tabs that can be attached to collar for safety at night

* Bathing or swimming more than once a month could result in a shorter active period for the collar.

View manufacturer and/or label information


  • Brand: Bayer Animal Health
  • Type: Flea & Tick
  • Form: Collar

Reviews (24)

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  1. 5.0 out of 5 stars

    "We love our Seresto collars."

    Seresto collars are worth every penny! They keep fleas off of our pets, out of our home, and help control them in our yard. You can't go wrong with these.

  2. 5.0 out of 5 stars

    "Best collar in east, west, north, and south!"

    The collar does just what it says and you can't beat that. I got them(3) much sooner than I had expected and the price was as good as I had priced locally. All in all you can't beat that!

  3. 5.0 out of 5 stars

    "You cannot go wrong with these collars!!"

    These collars are the best!! I have been using them for 2 years. I used to use a product I purchased from my vet and applied it monthly. I have 5 dogs and was spending about $75.00 a month on flea and tick medicine. My dogs are working farm dogs and I think these are the best on the market.

  4. 5.0 out of 5 stars

    "Love these collars! "

    I started using these collars two years ago and have never looked back. They are AMAZING and keep my hounds flea & tick free for at least 8 months at a time. Thank you to all who make & supply them!

  5. 5.0 out of 5 stars


    Great product!!! I have it on my dogs and cats and it has kept them free of fleas for over the 8 months. It has kept them off for a year!!!

  6. 5.0 out of 5 stars

    "great protection"

    I have always used Advantix and decided to switch as this is so much easier and less messy and lasts longer.

  7. 5.0 out of 5 stars

    "seresto collar"

    you name it I tried it.The only product to work 100 percent on all 5 of my dogs. not one flea or tick. We live in wooded land and have breeds from long hair to short hair, excellent product.

  8. 5.0 out of 5 stars

    "great stuff"

    never had a flea/tick collar that worked until this one. took a few days but no more fleas or ticks!

  9. 5.0 out of 5 stars

    "It works!"

    In Florida the fleas are formidable, but no match for the Seresto collars. They are expensive, but worth the money.

  10. 4.0 out of 5 stars

    "It works but not as fast as they claim."

    The first 4-5 days the dog was wearing the collar - I was still seeing fleas on the dog and even right under the collar. They were lethargic fleas - but alive. It has been three weeks now and I can't find any more fleas alive or dead and my dog is not scratching anymore.

  11. 5.0 out of 5 stars

    "Works great"

    I previously used flea and tick spot on from the veterinarian, but it got so expensive and the dogs and cats hated it. I just bought my first Seresto collar and it works great and my dog didn't hide from it! We live on a farm and it works great even with them going in the tall grass fields and woods.

  12. 5.0 out of 5 stars

    "So happy"

    I love these..I use to swear by frontline but I guess there were never fleas around. Everyday my dog had more on him so I bought this. After 2 days no fleas. I am so happy with these collars. I got another dog and the first thibg I did was order one for him. The price is very good too

  13. 5.0 out of 5 stars


    I previously used flea and tick prevention I purchased from my vet but the cost was getting too expensive. These collars work. I live on a farm and my dogs are always in the woods or in the fields. No fleas or ticks!

  14. 5.0 out of 5 stars

    "Seresto Flea and Tick collar"

    I have 5 large dogs that stay outside and run in the woods and tall grass. We live on a farm and this is the best thing I have ever found. They kept all my dogs tick and Flea free for a year!!!

  15. 5.0 out of 5 stars

    "good collar"

    Our poor guy was chewing himself raw , it did take longer than 12 hours to kill them but he is now bug free and a happy camper Thank You Bayer for Seresto ! and thank you to Jeffers Pets for prompt service !

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