







🐾 Stay ahead of the pests—because your dog deserves ultra-guarded adventures!
The Hartz UltraGuard Flea & Tick Collar offers 7 months of effective, water-resistant protection for dogs and puppies with necks up to 20 inches. Featuring a fresh scent and adjustable fit, it repels and kills fleas and ticks while allowing simultaneous use with regular collars. Ideal for active pets, it ensures continuous defense rain or shine, making it a trusted choice for year-round parasite prevention.






| ASIN | B0009F3MLU |
| ASIN | B0009F3MLU |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #1,526 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 (14,158) |
| 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 |
D**N
Must buy!
Works great for both my dogs and they never got a single tick or flea on them this past year. Will be buying some again in the spring! A lot cheaper than the pill or liquid form. My mom and dad always swore these collars that's the only way to go. I'm a true believer now.
L**N
Tick be gone!
Works great. My dog hasn’t had any ticks with this collar on him. Highly recommend
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.
O**R
Works well inside my vacumm canister or bag.u
I don't have pets any more but I use this to cut up and put in my vacumm bag or canister when vacumming for fleas as a preventive from them escaping before I'm done vacumming for the day. Although I do feel a flea sometimes still alive when I'm transferring bag or canister into a plastic bag to seal the bag before throwing into outside trash bin. Fleas are a living nightmare!
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.
M**N
great choice
the collar last longer than i expected
D**L
On subscription! Worth it!
Works well and affordable!
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
3 days ago
3 weeks ago