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Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments

Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments

4.3· 4,517 ratings

Best price now

$6.52at Chewy.comObserved at 5:34 AM

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Our take on the Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments

Hartz UltraGuard Dual Action is a monthly topical flea and tick treatment for medium dogs weighing 15-30 pounds. Each single-dose tube is applied along the back between the shoulder blades and is claimed to kill fleas, brown dog ticks, deer ticks and flea eggs for 30 days. The formula is designed to stay on and not rub off. At $6.52 for a 3-pack at Chewy.com as of November 4, 2026, it is a low-cost option, though it is a budget product with a mixed reputation among owners.

Best forOwners of medium dogs (15-30 lbs) on a tight budgetHouseholds wanting a simple monthly topical rather than a pillShort-term or seasonal flea and tick control
Pros
  • Low price per monthly dose
  • Kills fleas, flea eggs and both brown dog and deer ticks
  • Stays on the coat and resists rubbing off
  • Easy single-tube application along the back
Cons
  • Only for dogs 15-30 lbs and 12 weeks or older
  • Treated area can look oily after application
  • Not waterproof, so swimming or bathing can reduce protection
  • Some dogs show skin sensitivity at the application site

Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments prices at every store

  • Chewy.comNew

    In stock

    $6.52+ $4.95 shippingObserved at 5:34 AM
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  • WalmartNew

    In stock

    $6.52+ $6.99 shippingObserved at 5:34 AM
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Also available at

  • WalmartCheck price at Walmart

Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments price history

Lowest price we've seen: $6.52 on Nov 4 at Walmart. Tracked across 2 stores since Nov 4.

What reviewers say

Owner feedback on Hartz UltraGuard topicals is mixed. Many report it works well for the price on light flea problems, while others say it did not clear infestations or caused irritation at the application spot.

Pros
  • Affordable compared with vet-brand topicals
  • Easy to apply
  • Works for some dogs with mild flea issues
Cons
  • Inconsistent flea and tick control
  • Reports of itching, redness or hair loss at the application site
  • Oily residue on the coat

About the Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments

Tell pesky parasites to ‘bug off’ with Hartz UltraGuard Dual Action Topical Flea & Tick Prevention. Each convenient and easy to apply, single dose tube kills fleas, brown dog and deer ticks, and flea eggs for 30 days. Formula stays on and doesn’t rub off. Use only on dogs or puppies 15-30 pounds, 12 weeks of age and older. Package contains 3 monthly applications. Directions: Remove one applicator tube from package and hold in an upright position away from your face. Twist dispensing tip clockwise about 1/2 turn while pushing down to break the tube's seal. Do not remove the dispensing tip. Position the tip of the tube at the base of the pet's back between the shoulder blades and squeeze out the entire contents of the tube to form a stripe as you move from the shoulder blades along the back to the base of the tail. The treated area may appear oily after application. Repeat every month. Consult a veterinarian before using this product on debilitated, aged or medicated pets. If signs of sensitivity occur, bathe your pet with mild soap and rinse with large amount of water. If signs continue, consult a veterinarian immediately.

Specifications

number_of_pieces
3Source
size
15-30lbsSource
shape
3 countSource
multipack_quantity
1Source
count_per_pack
3Source

Questions and answers

Is Hartz UltraGuard Dual Action worth it?
It is one of the cheapest monthly topicals available, at $6.52 for three doses at Chewy.com as of November 4, 2026. It suits mild flea problems and budget buyers, but owners with heavy infestations or sensitive dogs often prefer a vet-recommended product.
How does it compare with a vet-prescribed flea treatment?
Vet products such as prescription chewables generally kill fleas faster and last longer, and some also cover more tick species. Hartz UltraGuard is cheaper but has a mixed record on stubborn infestations.
Is it waterproof?
No. Bathing or swimming can wash the formula off, so avoid wetting the dog for a few days after application and reapply on schedule.
Which dogs can use it?
Only dogs and puppies weighing 15-30 pounds and at least 12 weeks old. Do not use it on cats or on dogs outside that weight range.
What is in the box?
Three single-dose applicator tubes, one for each monthly treatment.
When is it cheapest?
Multi-packs and subscription orders tend to be the lowest cost per dose. The current best new price is $6.52 for the 3-pack at Chewy.com as of November 4, 2026.
Where is the Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments cheapest?
At Chewy.com, for $6.52, as of our latest check.
What do buyers say about the Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments?
Rated 4.3 out of 5 from 4,517 ratings.
Where can I buy the Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments?
2 stores we checked sell it, including Walmart, Chewy.com.

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Buying guides that pick the Hartz UltraGuard Dual Action Flea & Tick Topical for Medium Dogs 15-30lbs, 3 Monthly Treatments

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color
MulticolorSource
Animal
Dog