• Check out our new Product Demos!

  • Seresto Flea & Tick Collar for Large Dogs

Seresto Flea & Tick Collar for Large Dogs

SKU: 83857960
Regular Price: $72.25Sale Price: $54.99
One Time Order

Autoship & Save!    [MORE DETAILS]



Seresto Benefits
  • No need to remember monthly applications
  • Non-greasy, odorless, easy to use
  • Active ingredients imidacloprid and flumethrin provide dual action against ticks and fleas
  • Bayer's Polymer Matrix is designed to slowly and continuously release the active ingredients for 8 months
  • Kills fleas and ticks
  • REPELS ticks on dogs. If a tick is repelled or killed, it cannot attach to a dog. If a tick doesn't attach, it can't transmit organisms that may cause diseases.
  • Available in two sizes: Small dog or large dog
  • For use on dogs and puppies 7 weeks and older

Seresto Benefits

An effective, reliable alternative to monthly flea and tick topicals

With its sustained release technology, Seresto delivers the performance you expect from a topical treatment in an easy-to-use collar for 8 months of uninterrupted protection against fleas and ticks.

Seresto for Large Dogs is a unique flea and tick collar that provides up to 8 months of protection. Made of a novel blend of materials, it releases its active ingredients in small doses giving your dog a safe and controlled barrier. The Seresto collar not only kills existing fleas and ticks but repels ticks before they bite. This helps protect your pet from diseases spread by these parasites. Seresto can be worn along with your dog's normal collage and can be adjusted to fit any dog.


Usage Info

  • Remove Seresto® from the laminated bag inside the tin and unroll the collar
  • Make sure you remove any plastic remnants left from the production process of the collar
  • After putting around dog’s neck, push one end of the collar through the loop
  • Tighten until two fingers fit between the collar and the dog’s neck
  • Take care not to attach the collar too loosely, as it may be pulled over the dog’s head
  • When optimal fit is reached, excess collar length beyond 2cm should be cut off


Active Ingredients
  • Imidacloprid which kills adult fleas, flea larvae and lice
  • Flumethrin which repels and kills adult ticks, larvae and nymphs
    3-PACK Seresto Flea & Tick Collar for Small Dogs3-PACK Seresto Flea & Tick Collar for Small DogsReg price: $217.50
    Sale price: $164.97
    6-PACK Seresto Flea & Tick Collar for Small Dogs6-PACK Seresto Flea & Tick Collar for Small DogsReg price: $435.00
    Sale price: $329.94
    3-PACK Seresto Flea & Tick Collar for Large Dogs3-PACK Seresto Flea & Tick Collar for Large DogsReg price: $217.50
    Sale price: $164.97
    6-PACK Seresto Flea & Tick Collar for Large Dogs6-PACK Seresto Flea & Tick Collar for Large DogsReg price: $435.00
    Sale price: $329.94
    Related Items
    K9 Advantix II
    K9 Advantix II Flea & Tick Control
    Vet Kem Powerband Flea & Tick Collar for Dogs
    Vet Kem Flea & Tick Collar
    Zodiac Flea & Tick Collar for Large Dogs - 5 Months
    Zodiac Flea & Tick Collar for Large Dogs - 5 Months
    PREVENTIC Tick Collar 25" Dogs OVER 60 lbs - SINGLE Collar
    Preventic Tick Collar 25" (60+ lbs)
    Sentry Dual Action Flea & Tick Collar Dogs (fits 14"-26" neck))
    6 Mo Sentry Flea/Tick Collar for Dogs


    Customer Reviews

    DISCLAIMER: The results described on the testimonials on this site, are the individual experiences and personal opinions of those who have purchased and used the products. These testimonials are not intended to make any claims that the products can be used to diagnose, treat, mitigate, cure or prevent any disease or medical condition.
    Click here to see all reviews
    good product by tadf from Columbia, SC07/10/2013

    I have found that this product has worked very well on both my yorkie and my lab.. I would and will be purchasing this product next year for the fleas.

    Seresto is a good alternative to Advantix K9 by Duck Lady from Los Osos, CA09/01/2014

    I have always used Advantix K9 on my four dogs, 2 small and 2 large. It has worked fine until this year. I decided to try Seresto to see if it would work for my pets and I am happy to say it is working great with no side effects so far. I don't miss the messy liquid on my dogs backs and I like having to replace it only every 8 months. I would recommend giving it a try to anyone who is not happy with their current flea and tick product.

    Amazing product by Josie from Adirondack Mts, New York05/17/2014

    This is the second year that I have used the Seresto Flea & Tick Collar. We live in a heavily wooded area and this product is amazing. We don't have to worry about remembering a treatment. Sebastian is a 100lb yellow lab who loves to roll on his back in the yard and with the treatments that we previously used he would always end up with a darker brown stripe down his back. This product is no fuss...no muss.

    Tick problem solved by Beagler Dad from Honolulu, Hawaii05/07/2013

    My vet recommended this collar to me when I informed him of my tick infestation at home. I have 6 Beagles and their price was over $70 a collar. I researched online and found this website which saved me a bundle. My 6 dogs have been wearing it for about 2 months so far and no sign of any ticks whatsoever.

    Helps but doesn't Completely Kill All the Fleas by DadtoMany from Starke,FL05/21/2013

    This product has helped us get the fleas under control for our cocker spaniel. However we still find several fleas on her per day and still need to give her a flea bath to help. If you are looking for a "cure all" this is not the product. If you are looking to add to your arsenal for flea control/ prevention this product will help.

    by hkm206/20/2013

    This product has not prevented any flea or tick infestations on my animals.

    Really works! by Vt dog lover08/22/2014

    Nothing else worked but this has been better than I thought possible at keeping ticks off my dogs.

    Did not work at all. by C. Jones from Virginia Beach, VA08/13/2013

    The collar didn't work at all on my dog. Looking at other reviews it looks like the collar has trouble with long hair, (my dog has long hair). I'm not sure if its the collar or the fleas in my area, we have had a hard time finding anything that works. Luckily Entirely Pets had the price discounted so we didn't waste $80.00.

    Soresto Flea and tick collar are great by armyapril from Raleigh, NC08/16/2014

    I have used this collar now 2 years. I love it. Frontline quit working with my dogs and I started checking around for something new. I stumbled along this collar and decided to give a try. I have NEVER regretted the purchase. I recommend it to everyone.

    Seresto Flea & Tick Collar by Annie from Tupelo MS06/23/2014

    have had the collar on my outside dog for about a month and so far I have not seen a tick on her....have not seen fleas ....hopefully, we have a winner with this product.

    by Susieq05/20/2013

    We got the collar for 4 of our dogs. 6 weeks on and they are working great. If this keeps up we will be buying them again. We have recommended them to family and they have bought 2. Great product.

    LOVE IT! by Debbie from OLMSTED TWP OH06/12/2013

    I really was skeptical to spend that much money on this collar but glad I did I love it because it is waterproof and I am worry free about my dog getting ticks no more putting the liquid on his back that was always messy I would recommend this to every one who wants piece of mind not having to worry about ticks. thanks for a great product

    Easier than pills & drops and more effective by MaryAnn from Knoxville, Tennessee06/06/2014

    These collars are fantastic. Much easier than using drops or p ills and lasts a lot longer. Pets don't seem to mind the collar at all. Cost is much less in the long run compared to other Flea/Tick methods. Entirely Pets has got the best prices too! My next purchase will be a Thunder Shirt.

    Jury still out. by Florida West Coast from Sarasota,FL10/01/2013

    I have a sensitive golden who swims daily and does not do well with internal products. I started using a few weeks ago and so far so good. I do notice that after swimming it does take some time to re travel over his fur coat. I was told by Bayer that it was not necessary to remove and that it would last 5 months -vs- 8 months. I have been removing it but next time around I will see if it makes a difference to leave it on.

    great product by ed06/06/2013

    1 month in no fleas no ticks wonderful will buy again

    Seresto Dog Collars Slow to Work by clarice from middle TN07/05/2013

    My three large dogs have had their collars on for 2 1/2 - 3 weeks now and just today I have seen a SLOW DOWN with ticks and fleas. I am still pulling off live ticks from the dogs. It seems to be working fine with the short haired dog, but not as well with the long haired ones even with skin contact. I called and spoke to a customer service rep at Bayer (the manufacturer). She was very nice, and after talking with her it seems that the collar is working as expected, but she offered to refund my money. I told her I would give it a little longer. After doing the math, IF this product continues killing fleas and ticks for the promised 8 months, it will eventually be less expensive than purchasing a topical. The real advantage is there is no mess with the collars and one does not have to worry about children playing with the pet and getting insecticide on them. The collars are suppose to be water PROOF. We have had a lot of rain, and so far that's been the case. The product appears to be more of a repellent than a collar that kills the fleas and ticks. It will remain to be seen if the collar works as well as a topical. If it doesn't, I will return to topicals as I don't have children.

    works good in heavy tick populations by BoykinSpanielLover from Cassville,Mo06/17/2014

    I use it with Frontline for extra added piece of mind

    i love seresto collars by gess06/02/2014

    this collar is absolutely wonderful it works great my dog spends half the summer in the water and it still protects him up to five months against everything it says it will. I don't have to worry about my kids getting into the medication because it is all located on the collar and not down his back in a liquid which is very nice

    Well...I bought 2 more by farmgirl from tomball, tx06/07/2014

    I had looked at reviews for these collars before and got mixed reactions. I didn't buy one until my next door neighbor told me she had one and it worked. She told me she bathed her dog (with the collar) and it lasted about 5 months. The instructions say 5 months if you dog gets wet. I have 2 labs that spend a large portion of their time in water. They swim in the pond, sit in the water tub, play in the hose, etc, multiple times every day. The collars have lasted almost 4 months and it is time to replace them. I have noticed that after my dogs spend a long time outside that I will find fleas on them HOWEVER the fleas don't stay on them. I was hoping for a magic collar that repelled fleas in a 3 foot radius from my dog:). This is not it. But, I will say it worked comparably to the $10+ a month topicals I've been using. Occasionally (maybe 3 times) when there seemed to be a lot of fleas, I dusted my dogs with diatomaceous earth or a natural flea powder. I feel like between the collars and those occasional dustings I got pretty decent control of the fleas without pouring chemicals onto my dog. It is June and I am just now putting a new collar on. Hopefully it will be stronger going into the summer.

    too much money! by mis from Pittsburgh, Pa.11/29/2013

    I have not even opened it yet so I am not sure how well it works but ... just recieved it & already saw it on 3 other sites for much less than what I paid here. I would shop around before purchasing .

    2ND YEAR...LOV..LOV..FLEA & TICK COLLAR by shelli05/02/2014

    2nd year.. I love this flea & tick collar for large dogs no grease spots and no fleas or ticks works GREAT...I have 2 big dogs and would not use anything else...best product ever...and great price..

    Don't waste your money by John from Florida08/22/2014

    Poor product with a lot of hype. Bought 3 of these Seresto collars for my two dogs. I bought the wrong size the first time. The sizing is small and large with small being for SMALL dogs and large for any dog over 30 pounds. The collar gave one dog a raw rash under her neck and the other dog was still bothered by fleas. I also applied for the rebate but could not get it because I bought from Entirley Pets and not a vets office. Don't waste your hard earned money.

    Best purchase by Patches O Hoolahan from san diego, ca06/17/2014

    I had tried just about every flea treatment under the sun and nothing took. Every May to October my Scottish Terrier will start to develop hot spots and the fleas mounted to that cause him to start pulling out his hair in mouth fulls and leave him bloodied and infected. A friend finally told me about this product and it saved my dogs life, literally. Its all I use now, haven't seen a flea on my dog for well over a year.

    10 months and Counting - NO FLEAS by Jade's Mom from NE Florida06/14/2014

    Started using Seresto Collars last August and little by little have them for all my dogs. No Fleas anywhere. Starting to replace the old ones now. So easy!

    Alternative to ointment and chewablies by Skip from Glennie, Michigan07/06/2014

    So far so good, the worst part of flea season is coming. Time will only tell. My dog has had no ticks so far this year which hasn't happened in the past couple years. The chewable s and ointments have had adverse affect on my dog and so far not even a rash around his neck. I would highly recommend this product.

    Works as advertised by DFW05/07/2013

    Easy to put on and secure. After two weeks my dog has stopped scratching.

    very good product by Boo from Lehighton, Padog06/01/2014

    this is the second season I am using this product, I live in the woods and have fleas and ticks, last season using this product I did not see any fleas or ticks on my dogs, hoping for the same results this season

    Seresto Flea&Tick Collar by sandman04/28/2014

    Vet recommended. Performs as advertised. Love the reminder service that comes with the collar.

    would not puchase again by mis from Pittsburgh, Pa.12/14/2013

    found a fully engorged tick under dog's chin - 5 inches from product within 2 weeks

    So far so good! by Ty from SC06/08/2013

    Supposed to be a horrid flea season. So far, w 3 pets with the collar, no fleas yet!

    Great tick protection! by Lynne from New Hampshire07/01/2013

    We used to find 2-3 ticks/day on our dog. Since applying this collar about 6 weeks ago we have only found 3 and they have all been dead. This is an awesome product!

    Bargain!!! by Jill from Forest, VA06/14/2014

    I purchased these for my three girls (dogs) to avoid the monthly cost and application of Frontline. So far i am pleased with the protection from fleas and ticks. We live in a heavily wooded area in southern Virginia and ticks are a major problem. The cost broken down per month is a huge savings over topicals that i have used in the past. Plus no more messy, oily marks on my girls!

    it realy works by ann from New Orleans, LA05/28/2014

    Seresto is the only product that I have found that really works to keep fleas away from Millie, I live in the deep south and fleas were a year round problem. Seresto eliminates the flea problem for about 3 months. Expensive but can't be without it.

    Disappointed by LINDAC77 from Mill City, PA05/05/2014

    Last year 1 tick, this year 2 ticks already. I just recently put it on him. Is this collar defective?

    Although pricey, these are great. by bigeyedfish63 from NH05/29/2014

    Here in rural NH, there are ticks everywhere. I've tried the topicals and pills, nothing works as great as this collar. It does take a couple of weeks to start working. I do remove them when bathing or when they go swimming.

    Great Product by 4doghome from NC04/16/2014

    Collar does what it says--Keeps fleas and ticks away! Very easy to use. It works!!

    worst purchase ever by terror from Haleyville, Alabama06/13/2013

    paid way to much for this collar. wasted my money dogs still have ticks and fleas the collar did not repel the ticks sick that I wasted $180.00 on these collars

    Great purchase by cocoa's mom from New York06/30/2014

    My dogs didn't like when I applied their previous flea medication. They have very short hair and they would end up rubbing the flea stuff off before all of it absorbed into their skin. So far the collar has been working great.

    Tick control GREAT! Rebate...not so great. by Leah05/12/2013

    I tried the Seresto collar on my dogs this Spring. I live on an acreage with ticks. I also did not put down granules on my back yard for the first time ever. So far, the collar is doing it's job! No ticks on my dogs! My only complaint is with the rebate as advertised. I bought 2 collars and was entitled to 2 twenty dollars rebates and got only one.. I sent all the documentation required. When I called they told me to start over, but I no longer have receipts and the containers with the codes.

    Seresto Flea & Tick Collar by blazinbay04/16/2014

    Works - no skin irritation - worth the cost for 8 months

    Best Flea and Tick product on market today! by SUSIEQ01/27/2015

    We live in a tick infested area from spring to fall. Since we live on 40 acres, the dogs are always running around in the woods. Seresto kept the dogs tick and flea free for the entire time. Since the dogs did not have fleas and ticks, we were not getting fleas and ticks on us. It had always been a challenge in the past to keep the dogs from bringing ticks into the house. The ticks get killed immediately when they get on the dogs. This product is fantastic! We love it! EntirelyPets sells it at very reasonable price!

    Love this collar by AprilArmy from Raleigh, NC07/04/2014

    I live in North Carolina and have both fleas and ticks in my area. We used Frontline and it usually worked, but the monthly application was easy to forget. I decided to try the collar and I LOVE IT. You don't have to reapply and there are NO fleas on my dogs.

    Disappointed by PG from Smyrna, TN05/16/2014

    My dog is 110lbs and has had the collar on for 2 months and I still am pulling off tics everyday. I have had to go to liquid in additiona to the collar. I am having better luck with the small breed formula for my 12lb dog but not working on the big guy at all.

    Seresto collar by wskline from Clearfield, Pa05/29/2014

    Seemed to work great but few weeks in, our 7 year old lab was lethargic so we took collar off. Next day and since then, she is fine. Didn't want to take chance with our 11 year old lab so took collar off him also.

    Would I buy Seresto again?? by mwhitme05/22/2013

    I'm not sure about this product yet. I live in a heavy tick infested part of the country and I also do tracking with my dog. That means we are exposed over what the average dog probably is. I think it's too soon to decide if I would purchase this collar again. It's supposed to last 8 months, I figure if it lasts 4-5 months on ticks I will be thrilled. The collar has been on about 3 weeks now, I am not using any other product in combination with it. I have found several ticks on my dog but none of them have been alive or engorged. Several of them have been attached however. I guess at this point of use with this new collar I'd have to say it's performance is slightly better than topicals I've tried before but for the cost it still has to prove it's worth.

    I Am Impressed! by Big Ben Brewer from Oquawka, Illinois08/04/2013

    I take my dog for runs through the woods on trails in Illinois every day and prior to using this collar, I would pull several ticks off of him daily. Within the first week of placing the collar on him I was only pulling one or two ticks off of him a week. I will be purchasing another collar because he already lost his. Make sure you fit it on your dog properly. Money well spent! HAPPY DOG!

    by ol pup05/26/2014

    Performed as stated regarding flea and tick control. However, the collar broke in two and fell off after only two months.

    Best product ever by Tiny from Spring, Texas08/13/2013

    My German shepherd is allergic to fleas and just about everything else. We gave this a try because we had to put a topical on her every 3 weeks. After using seresto we have eliminated the flaking on her back. Thrilled with the results. We have had it on her for 5 months now. Can't believe that this product didn't work for everyone. One has to get rid of all fleas before they slap on a collar. I look at collars as a preventative, not a remedy to an infestation.

    nope not again by kimnanc from florida05/27/2013

    i have 3 dogs so bought a seresto back in feb to try on one dog. thought it was working so after 2 months purchased 2 more for the others. now after 3 months (Bayer's claim is 8 months of no fleas), the first dog was loaded with flea dirt and fleas, so I have just requested a return auth for the second 2 which i fortunately never opened.

    best investment by sweet pea from Pine Bluffs,WY03/18/2014

    buying the seresto large dog collar has been the best way to keep my saint bernards free of those nasty biting fleas. and also got rid of the flea dirt as well :)


    Questions and Answers

    Security Seals
    EntirelyPets.com, Pet Supplies & Foods  Retail, Union City, CA


    ~ My Account Login ~

    Sign into your EntirelyPets Account for the best experience!