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Hartz UltraGuard Flea and Tick Collar for Dogs, up to 20″ Neck, 1 Collar (7-mos. supply)


Help your furry friend fight pesky fleas and ticks with this Hartz UltraGuard Flea and Tick Collar! Specially designed for small canine companions, this collar can help combat fleas and ticks for up to 7 months. It’s completely adjustable for a comfortable fit and it’s also water resistant, so your paw-tner can stay protected while playing in the rain. When it comes to flea and tick control, Hartz has your pal covered!

Key Benefits

  • Can combat both fleas and ticks for up to 7 months, giving your pal the long-lasting protection she needs.
  • Water-resistant collar continues to fight fleas when wet.
  • Kills through contact—eliminates fleas and ticks.
  • This collar is specially designed for small dogs.
  • Proudly made in the USA.

UltraGuard Flea and Tick Collar Precautions

Use only on dogs. Do not use on puppies under 12 weeks of age.

Important Information

Fleas rise to the top of your pet’s coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.


  • Active Ingredients: Tetrachlorvinphos 14.55%.

About this item

  • Fresh scented
  • Kills and repels fleas and ticks for 7 months. Can be worn simultaneously with your dog’s regular collar
  • Water-resistant design won’t cause loss of effectiveness if your playful pup takes a stroll in the rain
  • Fits dogs with necks that measure up to 20 inches
  • For use on adult dogs and puppies 12 weeks of age and older



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