

🐾 Protect your pup in style — because every dog deserves UltraGuard confidence!
The Hartz UltraGuard Flea & Tick Collar offers up to 7 months of reliable flea and tick protection for dogs and puppies with necks up to 20 inches. Featuring a water-resistant design and fresh scent, it remains effective through rain and play. Easy to activate and adjustable for comfort, this collar can be worn alongside your dog’s regular collar for seamless parasite defense.






| ASIN | B0009F3MLU |
| ASIN | B0009F3MLU |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #1,441 in Pet Supplies ( See Top 100 in Pet Supplies ) #3 in Dog Flea Collars |
| Brand Name | Hartz |
| Breed Recommendation | All Breed Sizes, Medium, Small |
| Color | White |
| Customer Reviews | 4.1 4.1 out of 5 stars (13,948) |
| Date First Available | April 28, 2005 |
| Date First Available | April 28, 2005 |
| Directions | Remove collar from package, unroll and stretch to activate |
| Included Components | 7 month Collar (1) |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 0.75 x 3.75 x 5 inches |
| Item Package Dimensions L x W x H | 5 x 3.74 x 0.83 inches |
| Item Weight | 0.11 Ounces |
| Item model number | 032700804848 |
| Item model number | 032700804848 |
| Manufacturer | Hartz |
| Manufacturer | Hartz |
| Model Name | Hartz UltraGuard |
| Number of Items | 1 |
| Product Dimensions | 0.75 x 3.75 x 5 inches; 0.11 ounces |
| Size | Up to 20 Inch Neck (Pack of 1) |
| Specific Uses for Product | Active, Outdoor, Parasites |
| Style | UltraGuard |
| Target Audience Keyword | dogs, house-cats |
S**G
Effective and affordable.
I bought this for my dog, it got rid of the fleas, but I doubt the zeven moth protection as the last one lasted maybe 4 months before the fleas returned
B**.
Works great, just stretch the entire length first to activate before putting on animal.
I keep one of these on each of my outside dogs and they never have any ticks or fleas on them. Just remember to stretch it out a little to activate it before you put it on your dog. The first time I put one I overlooked this and was wondering why it wasn't working all that great then I got another and read the box and seen where it said to stretch the entire length first to activate after that no problems works like a charm.
E**N
Saves you money and works!
Works great for my baby girl! We live in an apartment complex with other dogs. So far she has been flea free for a couple months now. Beats paying lots of money at the vet office. Will buy again!
C**K
Flea collar
Works the way it's supposed to.
J**.
Beware of chemicals in these products.
I will never buy this again. I decided to try Hartz Ultra Guard because it had good reviews and a lot less than the other natural flea collars I have used in the past. Worst mistake ever and cost me more money in the end. I have an 8 year old Golden Doodle and I thought we were going to lose him. The chemicals in the flea collar made my dog sick. He went from running around full of energy to not eating and could barely move within a few days. I had to clean the dog multiple times because he did not have the energy to stand and use the bathroom. After taking him to the vet and running tests we finally figured it out. Its been 72 hours and he is finally able to eat about 25% of his normal amount and use the bathroom like normal. Spent Christmas day crying because I thought I was going to lose my best friend. This was not worth the $20 savings. I am sure this is not a normal occurrence but need to be mindful if your dog has or may have allergies. I hope this helps other dog owners avoid an emotional roller-coaster.
N**S
Helps but not 100% effective.
I’ve used these and other brands for many years on outside short haired dogs. Sometimes you get ones that work great and other ones that are absolutely worthless. One time a tick actually bit and thrived right under a new collar.. I don’t know if one brand is better than the next, it seems to be a crap shoot on brands and batches but I keep buying them. I’ve tried the drops twice with no success but I’ve heard the vet’s version works great.
A**R
Experimental purchase
I’m giving this a five stars in hopes of this flea collar doing it’s job, I had to give a rating even though results are yet in…that said, this collar is not going around my pups neck, but into the canister of my vacuum cleaner. Fleas are everywhere this time of year. I’ve been told by folks who don’t have pets that they have seen fleas indoors and outdoors. I live in San Diego and evidently from what the Vets tell me we have one of the highest infestations in the country due to our climate..that being said both of my pups are medicated, I vacuum everyday. One of my girls is a Pitty and of course has skin allergies like many do. She is allergic to flea saliva🥹.. One day recently had her at the Vets who mention that putting a piece of a flea collar can help to reduce the number of fleas caught in canister that would have potential to escape back into the living space..hence the reason for my purchsase. The price is right so we will see how well that works.
M**9
Good dog collar
Good collar flea's. Smell is pretty strong when first opened but that's expected.
N**N
Why did you pick this product vs others?: For ticks
M**R
My dog has had it on for more than 3 weeks - no improvement at all. Don’t waste your money.
E**A
My dog used to catch ticks everytime we go on walk. The product is a life changer. I haven’t find or see any ticks on him, it is been a real life saver for our household. My dog is thankful !
L**L
Good quality in this price
U**O
Good service delivered before suggested time. And till now no issues with the product
Trustpilot
1 week ago
2 weeks ago