Out of Stock No Longer Available Hartz Ultra Guard ProMax Flea & Tick Collar for Dogs, 2 collars (12-mos. supply), slide 1 of 1

Hartz Ultra Guard ProMax Flea & Tick Collar for Dogs, 2 collars (12-mos. supply)

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As a dog parent, one of the last things you want is for your canine companion to be burdened with fleas, ticks and mosquitos. Hartz Ultra Guard ProMax Flea and Tick Collar for Dogs is safe and effective for dogs 12 weeks and older in killing fleas and ticks, while also repelling mosquitos and preventing flea eggs from hatching. With a dual buckle system, the Hartz Ultra Guard ProMax Flea and Tick Collar for Dogs is sure to stay in place, while its water resistant formula means that you and your canine companion can continue enjoying your swims together.

Key Benefits
  • Made with a soft, flexible texture and latches with rounded edges to help ensure a comfortable fit.
  • Designed with two buckles to help ensure it remains in place, yet still easy for you to remove if necessary.
  • Strong enough to provide your dog with all-over protection.
  • Not affected by water, so it does not need to be removed before swimming or baths.
  • Works to Protect your dog against fleas, ticks and mosquitos.

Do not let children play with this collar. See insert for additional precautionary statements.

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  • Item Number
  • Weight
    2.2 ounces
  • Lifestage
  • Breed Size
    All Breeds
  • Collar Type
    Flea & Tick
  • Product Form
  • Health Condition
    Fleas, Ticks

Active Ingredients: Deltamethrin 4.00%, (S)-Methoprene 1.02%, Other Ingredients 94.98%


Remove collar from protective pouch directly before use. Unroll collar and make sure that there are no remnants from the plastic connectors inside the collar. Insert the end of the collar through the buckle. Adjust the collar around the dog’s neck without tightening it too tight or leaving it too loose. As a guide, it should be possible to insert 2 fingers comfortably between the collar and the neck. Pull excess collar through the loop(s). Collar length of greater than 1 inch (2 cm) beyond the loop(s) should be cut off unless it is on a growing puppy, where some additional length may be needed for adjustment as the dog’s grows. The collar should be worn continuously for the 6 month protection period. Check periodically and adjust if necessary, especially when puppies are rapidly growing. Replace the collar after 6 months for optimal tick, flea and mosquitoes protection.

Size Neck Chest
X-Small 26 in 0.5 in

About Hartz UltraGuard ProMax Flea & Tick Collar

Comfort They Can Enjoy

Your best friend’s happiness is very important, so Hartz makes the UltraGuard ProMax collar with superior comfort in mind. With a soft and flexible texture and rounded, outward facing latches, this collar provides flea and tick protection without cramping your dog’s carefree lifestyle.

Product Grouping
Dog Wearing Collar

Protection You Can Trust

Fleas and ticks aren’t just annoying—they can also transmit diseases that can harm your dog's health. The UltraGuard ProMax collar kills fleas and ticks, repels mosquitoes and helps prevent flea eggs from hatching, for ongoing protection and itch-free ease. Your pup will love the freedom from biting pests and you’ll love the peace of mind.

Why Choose ProMax?

The ProMax collar gives your canine the comfort he deserves and the flea and tick protection you want in a simple, easy design. Hartz treasures the special bond you have with your pet, and they’re dedicated to making products that help stop fleas, ticks and mosquitoes from bugging your bestie. Make your dog one of the 5 million furry family members Hartz helps keep pest-free year-round.

Dog Wearing Collar

The Collar That Protects Pets Against Pests

The ProMax Flea and Tick Dog Collar kills fleas and ticks, helps prevent flea eggs from hatching and helps get mosquitoes to buzz off. Combine that with lasting full body protection, soft and flexible comfort, and you have everything you and your dog ever wanted in a collar!

Comfi Fit

A soft and flexible texture and outward-facing, rounded latches provide maximum comfort for your dog.

Secure Dual Buckle System

Two buckles achieve a strong hold while making the collar easy to put on and take off.

6-Month Full Body Protection

Active ingredients embedded in the collar release slowly over your pet’s skin, for up to 6 months of total body protection.

Patented Design

The special design combines soft and flexible comfort with a dual-buckle system to keep the collar securely fastened.

Three Colors to Choose From

ProMax collars come in blue, black and gray, so you can choose the color that suits your pup best.

Not Affected by Water

Swimming, baths and playing in the rain are all perfectly fine while wearing the ProMax collar.

Adjustable Fit

The collar can be used on dogs and puppies 12 weeks and older, and it fits neck sizes up to 26 inches.

UltraGuard Products

The full UltraGuard line of collars, topicals, shampoos and home products help protect your pets from pesky pests.

Protect Your Pets With Hartz


UltraGuard ProMax Flea & Tick Collar

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UltraGuard Plus Flea & Tick Collar

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Nature's Shield Dog Spray

Product Type





On-Pet Spray

Pest Protection

Kills fleas & ticks and helps prevent flea eggs from hatching

Kills fleas & ticks and helps prevent flea eggs from hatching

Kills fleas & ticks and helps prevent flea eggs from hatching

Kills fleas & ticks

Kills fleas & ticks and prevents flea eggs from hatching

Mosquito Repellency






Months of Protection

Up to 12 months consecutive protection, with each collar providing 6 months protection

7 months

7 months

7 months

Spray as needed

About Hartz

Hartz has been delivering exceptional consumer pet care products for over 90 years. Their mission is to provide innovative, trustworthy and affordable products that strengthen the bond between pets and their families, and to offer the knowledge and support people need to better care for their pets. The Hartz goal is a world where every pet can lead a healthy, happy and long life in a loving home.

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About Hartz

Rating: 4.4 of 5 stars 149 Reviews 149 Reviews 4.4 out of 5 Stars

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Rating: 4.4 of 5 stars 4.4 / 5

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