Seresto Flea and Tick Collar for Large Dogs

Regularly: $72.25
Today's savings: 20%

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Seresto Flea and Tick Collar for Large Dogs


In Stock. Usually Ships within 24 hours.

Shipping weight = 0.25 lb.


Product Summary:

Seresto Flea & Tick Collar for Large Dogs
The performance you expect from a topical flea and tick treatment, in a non-messy, easy-to-use collar

The Seresto® Flea & Tick Collar for Small Dogs is an easy-to-use, effective way to kill and repel fleas and ticks. The innovative Sustained Release Technology offers odorless and non-greasy protection for up to eight months. It begins to kill fleas within 24 hours and ticks within 48 hours of initial application.

The Seresto® Flea & Tick Collar is for large dogs and features a 27½-inch, easy-to-use, no-hassle, waterproof collar size. It can be used by puppies seven weeks and older. It kills deer ticks, American ticks, brown ticks, and Lone Star ticks, as well as chewing lice. The dual action protection provides a continuous release of two active ingredients: Imidacloprid controls flea infestations, while Flumethrin effectively repels and kills ticks. The combination works like a monthly topical flea and tick treatment, yet is designed to slowly release the ingredients in low concentrations for eight months.

Item Specifications:

Special Safety Feature:
The collar is designed with a safety release mechanism, where in the unlikely event the dog is trapped, its own strength is sufficient to widen the collar and offer a quick release. Because the collar is equipped with a predetermined breaking point, a hard pull triggers the breaking of the collar at this point.

Directions for Use:
To ensure the easy to use waterproof collar is applied correctly, read the complete directions for use found in the package insert.

  • Once you are ready to fit the collar to your dog, remove from protective bag immediately prior to use.
  • Unroll collar remove the plastic connectors inside the collar, ensuring that no remnants remain.
  • Insert end of the collar through the buckle.
  • Adjust the collar around the dog’s neck without tightening it too tight (as a guide, two fingers should fit between the collar and the neck).
  • Pull excess collar through the loop(s) and cut off any excess length extending one inch beyond the loop(s).
  • Seresto® comes with three optional reflector clips that can be attached to the collar to help keep your dog visible at night. The reflector clips should be evenly distributed on the non-overlapping part of the collar.
Downloadable Resources
Item Number Model Number UPC
400317 83857960 724089579607

Product Reviews by Customers

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Browse 13 questions Browse 13 questions and 84 answers
Why did you choose this? Store
Long lasting and effective.
Jennifer D on Aug 20, 2019
second time we order this, happy it works for 8 months
Rosemary D on Jun 2, 2019
Long lasting and effective.
Jennifer D on Aug 20, 2019
its a good collar
Victoria H on Jun 3, 2019
second time we order this, happy it works for 8 months
Rosemary D on Jun 2, 2019
flea and tick protection
Helen/Matthew D on Apr 30, 2019
I have used Seresto Flea and Tick Collar for all size dogs for the past 3 years. I love them. I have not had one flea or tick on any of my 6 dogs over the past 3 years. I usually purchase from my neighborhood pet shop. This year I have been so busy and I was so happy 1800petsupplies was available for me this year.
Susan K on Mar 15, 2019
I have used this collar on my 70 pound dog and was very satisfied with it.
Judy R on Mar 15, 2019
Used for 2 years now and never a tick or flea, my four dogs go in and out all day long through their doggie door, we live in the woods of Maine.
Linda D on Mar 14, 2019
Best on the market - cheaper here than at the vet.
Sarah W on Mar 13, 2019
mary g on Feb 8, 2019
it works great
Kathy F on Jan 8, 2019
It works really well on our white dog that attracts a lot of fleas.
Melanie M on Dec 8, 2018
goods items,fast shipping<br />Thank You
Tbkent T on Nov 21, 2018
The best there is.
john d on Nov 6, 2018
I hear that it is more effective than other treatments
Gloria S on Oct 8, 2018
They work well
Anna B on Jul 28, 2018
Used them before and they work!
Diann M on Jul 20, 2018
Seems like a deal with the 25% off
Christine B on Jun 25, 2018
excellent collars they do what they say
shelby c on Jun 24, 2018
I have used the Seresto Flea and Tick Collar on four dogs as soon as it was available and have never seen a flea or tick. The pills aren't necessary and the flea and tick oil you put between the dogs shoulders also a mess isn't necessary. Plus I don't have to think about it for eight months. I highly recommend to dog and cat parents.
Judy B on Jun 22, 2018
works well on my dog
Lisa T on Jun 4, 2018
they work
wanda s on May 30, 2018
My vet told me how well seresto works on his dogs
Wayne S on May 6, 2018
Had last year work well
Cheryl S on Apr 15, 2018
The customer reviews are good.
Timmie H on Apr 12, 2018
For flea and tick prevention.
Ricky D on Apr 5, 2018
Works very well. Never see any fleas.
Melanie M on Mar 30, 2018
We have a flea and tick problem in this area.
Susan F on Mar 26, 2018
the price of the product
julie b on Mar 13, 2018
I use these and they work
Michael R on Feb 26, 2018
Best I have found for this.
Nell L on Jan 11, 2018
My vet suggested it. Said it was one of the best. Especially with the issues my Missy Lacey has with allergies. With flies, ticks or any thing else that is out there. LOL
Theresa P on Dec 8, 2017
4 dogs and no fleas
Linda D on Nov 27, 2017
they work
Tara C on Nov 11, 2017
Amazing product and works well.
Kimberly M on Nov 1, 2017
No reaction from my Austrailian Heelers. They stay flea and tick free.
Robin M on Oct 31, 2017
This product is effective and more economical than monthly applications. Remembering to replace once every 8 months eliminates the need to remember month-to-month applications.
Kathleen M I on Oct 15, 2017
highly recommended by vet but got a better price thru petsupply
rosemary h on Oct 2, 2017
I've used this collar which lasts 8 months. We are in an area that has a large tick population and have had flea infestations in the past while using topical products. Using this collar I've seen ZERO ticks and fleas on my pup
bal17ance on Sep 29, 2017
I have used this before and it works great for my dogs.
patricia b on Aug 25, 2017
wish to try for the first time, with our new rescue puppies' first Summer, with him not responding to 2 different topical flea treatments!
Lani W on Aug 7, 2017
It works great
Cherylene A on Jul 23, 2017
I have purchased these colors for the last couple of years through my vet they work great. Had to purchase from here because it is a great price.
Mary E on Jul 20, 2017
recommended by friend
LaTera R on Jul 18, 2017
Have used this before and it works, don't have to apply every month and its good for 8 months.
Brenda G on Jul 2, 2017
same as above response, this is for my big girls, love the product
Margie G on Jun 24, 2017
These collars really work!!
Linda S on May 19, 2017
This is a great product and price
Felice M on May 7, 2017
Need something that works. We hate the topical one. The dogs rub it all over our furniture and us.
Scott B on May 5, 2017
It's the only flea control that works well on my dog.
Melanie M on Apr 24, 2017
To protect my dog from fleas and ticks. I don't like topical.
Jessica B on Apr 21, 2017
its a good collar
Victoria H on Jun 3, 2019
flea and tick protection
Helen/Matthew D on Apr 30, 2019
Does seresto work after getting wet? my dogs swim alot in the creek during the summer and want to make sure seresto will continue working after frequent swims.
A shopper on Apr 8, 2019
BEST ANSWER: Water-resistant formula continues working for up to eight months, even after bathing, swimming and sun exposure.
Does the soresto collar keep ticks and fleas off the dog ?
Linda S on May 23, 2017
BEST ANSWER: Yes. I sew them to inside of their collars. I have two labs. When the Seresto collars are sewed inside they do not chew term off. My dogs swim but they do seem to last. I live in the woods so ticks are everywhere.
Will a large collar fit my 93-100 pound gsd/iw????
A shopper on May 1, 2017
BEST ANSWER: The collar length for the large dog is 27.5 inches, and the excess is cut off to fit. You would need to measure your dog's neck to be sure. Hope this helps!
Can a English Mastiff use a Seresto collar an be protected as well as a plain large dog?
A shopper on Dec 8, 2016
BEST ANSWER: I would ask your vet. I use a large collar for a cocker spaniel that is less than 30 lbs. I don't believe the collar would be long enough for your dog.
Is the large soresto collar safe for medium size dogs?
Renae S on Jun 13, 2016
BEST ANSWER: I believe the size needed goes according to weight. Check the package.
What type of Flea & Tick Formula is this one? Is this Chews or Pill? How many in 1 box?
A shopper on Jan 30, 2016
BEST ANSWER: It is a collar with reflectors on it. I have two labs and 4th year I have used them. They will last 8 months but since my dogs swim it does not last as long. A little pricey but worth the money. I live in the woods with lots of fleas and ticks. I have never had to pull a tick off either dog and no fleas. I think it works better than what goes behind their neck. NO side effects from this collar.
do you have medium size in the Seresto flea collar?
helene s on Jan 20, 2016
BEST ANSWER: We only carry Seresto for dogs in small and large.
Unopened what is the shelf life of this item? I'd like to buy 2 and save one.
A shopper on Nov 6, 2015
BEST ANSWER: I do not know the answer to the shelf life. I have bought many and use them right away and then buy again. My labs are always in the water which does decrease the 8 month time.
I see this works for fleas but what about tics?
A shopper on Apr 8, 2015
BEST ANSWER: All I can say is that I've been using Seresto for 2 years now on my 30+ pound wavy coated cockapoo and I haven't seen one. I'd give it a couple of weeks to settle in before going someplace tick infested and still check after.
Much better than that oily spot on his coat once a month...
does the seresto collar kill fleas that are already on dog??
A shopper on Feb 3, 2015
BEST ANSWER: I can tell you that after trying all the topical treatments--sprays, drops, etc., nothing performed as well Seresto has. After experiencing a season of the worst flea infestation ever, the collar worked to effectively kill existing fleas & ticks and continue to protect for the 8 months as stated. I will continue to purchase and highly recommend the products to all my dog loving friends. A side effect was that my lab's skin condition also cleared.
It is Oct. Should I put these collars on my dog and cat? Live in New York State Seresto Flea and Tick should they were it through the fall and winter months?
Marion on Oct 21, 2014
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BEST ANSWER: In my opinion, it would depend on whether you have a flea/tick problem year round. In South Carolina the answer is yes. I take the Seresto collar off when I bathe my dogs just in case exposure to water reduces life. So far i have had success with the collars and I have 4 dogs.
What is the weight minimum and maximum ?
A shopper on Jul 8, 2014