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We'll collect your vet's information at checkout to verify the prescription.
Usually shipped in 1-3 business days.* Learn more
$30 max savings.
This whole process was so easy and this stuff works great and is amazing!!
Great product
I love this stuff. Really gets the job done.
great product
First time ordering this product and have not used it yet, but I’m basing my rating on my WEB research of Knockout E.S. with just about every review being the most positive.
This product is fantastic! We run a rescue and despite our best effirts, sometimes a fkea gets in. Then its havoc! All get treated but of course you have to treat the premises or the fleas hide out and get right back on. KnockOut dries quickly, us eady to apply, and i just keep pets off an area for about 20 minutes. I always keep it in stock.
We had a horrible flea infestation in our stable last year. The dogs as well as the barn itself suffered from the fleas. This was the only product that worked to eliminate the problem completely.
I bought this hoping to rid of the fleas. Used it and haven't seen any so far..
Great product!
AAA+++
Best price
This product has always worked great anytime I have needed it. I recommend it. It kills fleas on contact. I always keep a few cans on hand, just in case.
hopefully this the best product on the market to get rid fleas,we will see.!
This stuff kills any bug imaginable. And continues to kill for several months. Since finding the product, I have used nothing else to control fleas and other bugs. Highly recommended!!
my vet highly recommended it
It work fast,
This was recommended by my vet. Since I have never used this, I will not be able to tell about the product until I use it.
For home treatment
puuurrrrfect product. I found flea dirt on the dogs, but no fleas. So i knew they were in the house but dying off on the dogs. However, the cat is indoors and therefore not protected. I used this product in order to prevent him from infestation. Not one flea, Not one spec of flea dirt. aces.
Fleas have been horrible in Ohio this year. Flea bombs, etc just seemed to piss the fleas off. My vet recommended Knockout and what a difference!
I have used this product before and find it works really well.
vet recommended. seems to work.
Great product, works fantastic!
I've used numerous products in an attempt to alleviate a flea issue I've been dealing with. I was told about Knockout and decided to try it. WOW! this product does exactly what it states! I'll never waste my time on anything else. Knockout is a knock out! Fantastic product and the best priced through Allivet. I'm one happy dog trainer.
Great price
Knockout Works - and fast!! Super easy. No closing up the house, covering all surfaces, evacuating the entire house for hours -- and it works better than any flea-bomb I've ever used.
Recommended by vet, worked great 1st time, this purchase is for follow up treatment as also recommended
I'm purchasing this product because it was referred by the pharmacist my pets see for care, I don't want to have flea problems so I was told this would be quick and easy and will last moths to come.
I have used the ES before and it killed fleas as well as the Palmetto bugs aka roaches in my garage in Florida. That was a nice surprise! I hate them more than fleas! Excellent product
Works great.
I purchased Knockout before, on the vets recommendation, and it worked great. You will have those stubborn fleas so a second treatment is usualy required.
Worked great and Allivet was easy to order from...
I've used this product twice/year for years and have never had a problem with fleas in the home.
Best pricing anywhere for Knockout E.S. Area Treatment anywhere! Free shipping on $49+ and anything I need for my pets.....Allivet has it!
I have used this product for years for spiders. Being terrified of spiders, this product gives me a lot of comfort. I spray it around the corners of every room in the house every 3 months and hardly ever see one! It's also pretty safe for animals to be around after spraying, and that's a great benefit.
works great for fleas and spiders!
best product, best price
I tried other products but found this to work best.
I have tried literally everything out there, and still had fleas. Knock-out really kills ALL of them and keeps them gone.
Best price I can find. Effective product. They always ship promptly.
Once a year product!
We tried this once before and were amazed at the effective flea control .... this is our second order.