Hartz UltraGuard ProMax Flea & Tick Cat Collar, Purple, 2 count

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About This Item

Details

  • The patented and flexible collar design has a smooth interior surface that helps keep your paw-tner comfortable and protected.
  • Kills fleas, ticks, flea eggs and flea larvae. It even prevents flea eggs from hatching!
  • The long-tapered end is thread through a secure dual buckle system for easy application.
  • The pre-determined breakaway point provides added safety.
  • Each tin comes with 2, 7-month collars that offer 14 consecutive months of flea and tick protection.

Instructions

Size

Learn More About Hartz From Our Team of Experts

Comfort and Protection From Fleas & Ticks

Comfort they can enjoy, protection you can trust with Hartz UltraGuard ProMax Flea & Tick Collar for Cats & Kittens. Our comfort technology is backed by our unique patented design to provide the most soft and comfortable flea & tick collar for cats to sport all year long. This collar kills fleas, ticks, flea eggs and flea larvae, while also preventing flea eggs from hatching. Each tin comes with 2, 7-month collars that provide 14 consecutive months of head to tail flea & tick protection – perfect for yearly usage or multi-cat households.

Soft, Flexible, and Comfortable

ProMax is a soft, flexible flea and tick collar that allows your cat go about their day comfortably while staying protected.

How Hartz Flea and Tick Collars Work

Hartz UltraGuard ProMax flea and tick cat collars contain active ingredients that are slowly released and spread over your cat's full body to kill fleas and ticks, and prevent flea eggs from hatching for up to 7 months

Why Choose a Hartz Flea & Tick Collar?

Hartz UltraGuard ProMax collars provide a convenient, mess-free form of flea and tick protection. ProMax collars are easy to put on and readjust if necessary, and they can be worn simultaneously with your cat’s regular collar for up to 7 months.

About Hartz

For more than 95 years, Hartz has been dedicated to creating products that show pets the same unconditional love they give us. Hartz is a leader in quality, innovative products for dogs and cats, including Oinkies, UltraGuard, Nature’s Shield, Home Protection, Comfitables, and Groomer's Best brands. Through the Hartz Loving Paws shelter outreach program, Hartz is committed to helping animal welfare organizations that protect and care for pets until they find their forever homes.

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Questions & Answers

9 Customer Questions

have 2 cats that groom each other. are this collars safe for them?

Answer by Chewy • May 17, 2022
Since grooming is a natural instinct, all Hartz flea and tick products are formulated with this in mind. If used as directed, we would not expect a problem if your pet was to groom itself while using our product.

Does this work if you are dealing with an infestation?

Answer by Chewy • May 02, 2022
The collar will begin to kill fleas, ticks and flea eggs and larvae immediately. Its full protection against harder to kill ticks will be built up within a few days after being placed on the pet. For continuous flea and tick protection under normal conditions replace the collar every seven months. Under conditions where pets are exposed to severe flea and tick infestations, it may be necessary to replace the collar more frequently. Additionally, we recommend treating the home or environment in the case of an infestation.

Safe for kids to touch that cat with this on? Kids touch all over collar head neck there no way of preventing.

Answer by Chewy • May 09, 2022
Federal law requires that every product in the flea collar category must contain the statement "Caution: Do not let children play with this collar," or equivalent statements for similar products outside this category. Our Research Department advises that normal contact between you and the cat when wearing the collar should cause no harmful effects. However, they also advise that the collar is not a toy and should not be played with by a child. Regulations also require that products in this category contain a disposal statement regardless of the hazard they present. Again, the Hartz Flea & Tick Collar is completely safe to use as directed. We anticipate no hazard from incidental handling of the package. There is no measurable amount of product residue within the packet after removal of the collar. Yet, this instruction is necessary so that people develop the habit of careful disposal of empty household product packages, some of which may present some degree of hazard. When the pet has the Ultra Guard Flea & Tick Collar on, your pet can sleep with you or your family without any expected problems. Please note that the collar does contain pesticides and precautions should be taken if the pet sleeps by your face, as you would not want to be inhaling or have prolonged direct contact with the product. However if the pet normally sleeps at the foot of the bed, no problems should occur

What is the expiration date

Answer by Chewy • Apr 06, 2022
The UltraGuard products do not have an expiration date. They have a shelf life of 5 years. The exact shelf life of each product, can be obtained directly through the manufacturer.
Reviews
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3.8
Rated 3.8 out of 5 stars
708 Ratings
Terms & Conditions

293 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.

Rated 1 out of 5 stars
By Rae on Dec 11, 2025

Idk. Maybe the blood?

I saw the mixed reviews and opted to try it anyways, but these are genuinely terrible. My poor cat has a ring of fur around his neck that's gone bald from this

I saw the mixed reviews and opted to try it anyways, but these are genuinely terrible. My poor cat has a ring of fur around his neck that's gone bald from this collar, as well as a massive bloody chemical burn where the "latch" part of the collar was smushed between him and the bed while he slept. I'm absolutely distraught from waking up this morning to find my whole apartment covered in blood. If you see the comments about chemicals burns, please dont assume- as I did- that it was a fluke and someone got unlucky. It could happen to your cat just as easily as it happened to mine.

Rated 4 out of 5 stars
By JGM on Jan 5, 2026

No issues and helped keep off ticks and fleas

Both kitties have done well with these collars. We take them off every night and only put them on when they go outside for brief periods of time. They were coming

Both kitties have done well with these collars. We take them off every night and only put them on when they go outside for brief periods of time. They were coming back inside with ticks, so we gave these a try. We do not leave these collars on 24x7. Our kitties are mainly indoors, but we let them out for supervised outside times.

Rated 3 out of 5 stars
By Lori on Nov 19, 2025

Became Ineffective After 4 months

The first 4 months of use, I didn't find any fleas on either cat. But after about 4 months, I started noticing one cat chewing and scratching, which got increasingly

The first 4 months of use, I didn't find any fleas on either cat. But after about 4 months, I started noticing one cat chewing and scratching, which got increasingly worse. I've switched to Seresto and there's already been an improvement.

Rated 5 out of 5 stars
By carol on Oct 29, 2025

Need to keep those critters away

My house and indoor cats got infested by a visiting kitty. So hard to get rid of fleas. Now my indoor kitties want to explore in the yard so I felt they needed flea

My house and indoor cats got infested by a visiting kitty. So hard to get rid of fleas. Now my indoor kitties want to explore in the yard so I felt they needed flea protection and a collar to identify them as "loved". These did the trick.

Rated 5 out of 5 stars
By Veronica on Jan 15, 2026

Easy to use

It is basically what is advertised. My cat doesnt mind it being on as well.

It is basically what is advertised. My cat doesnt mind it being on as well.

Rated 2 out of 5 stars
By Diane on Nov 26, 2025

Looks legit

Did not seem to be effective. Unfortunately only the REALLY expensive Seresta works, according to our vet.

Did not seem to be effective. Unfortunately only the REALLY expensive Seresta works, according to our vet.

Rated 1 out of 5 stars
By Casey on Sep 2, 2025

Did not work

Followed directions and used one per cat, did not decrease flea activity or kill any fleas. We’ve still been combing and finding fleas for weeks after putting the

Followed directions and used one per cat, did not decrease flea activity or kill any fleas. We’ve still been combing and finding fleas for weeks after putting the collars on. We did treat our house and do all the things you’re supposed to, in addition to the collars.

Rated 1 out of 5 stars
By Cindy on Oct 26, 2025

Bad rash and scabbing where leash was in place

Where the collar was placed, it created loss of fur, patches of scabbing and some blood in areas. Won’t be using this product again.

Where the collar was placed, it created loss of fur, patches of scabbing and some blood in areas. Won’t be using this product again.

Rated 5 out of 5 stars
By Sheila on Jul 26, 2025

Affordable flea & tick prevention!

The UltraGuard ProMax Flea & Tick collar for cats is exactly what I was looking for. I like the design of the product itself, especially the breakaway feature, and

The UltraGuard ProMax Flea & Tick collar for cats is exactly what I was looking for. I like the design of the product itself, especially the breakaway feature, and smooth side for comfort on my cats neck. I also like that the product is safe even if cats ingest some whilst grooming one another. More importantly I appreciate they're affordable, long lasting and actually work! Great product!

Rated 1 out of 5 stars
By Tony on Aug 14, 2025

Avoid this collar

Purchased in April, was supposed to be good for 7 months, stopped working in July after only 3 months and my cat was infested with fleas. On the package it says

Purchased in April, was supposed to be good for 7 months, stopped working in July after only 3 months and my cat was infested with fleas. On the package it says you can't replace it before 5 months even in a heavy flea area - worst product I have ever used on my cat