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Home Our Brands Ultraguard Products

Hartz UltraGuard log. Hartz UltraGuard flea and tick products for dogs, cats and homes.

  • Hartz® UltraGuard® Flea & Tick Collar for Dogs – Black

    Kills and repels fleas and ticks for 7 months.

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  • Hartz® UltraGuard Pro® Flea & Tick Collar for Dogs and Puppies - 2 Pack

    Kills fleas and ticks. Prevents flea eggs from hatching.

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  • Hartz® UltraGuard® Plus Flea & Tick® Collar for Cats and Kittens - 2 Pack

    Kills and repels fleas, ticks, flea eggs and flea larvae, plus prevents ...

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  • Hartz® UltraGuard® Flea & Tick Powder for Dogs

    Water-resistant, on-pet powder kills fleas, ticks and lice for up to 7 days

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  • Hartz® UltraGuard Pro® Flea and Tick Drops for Dogs and Puppies 61-150lb

    The patented and easy-to-use Pro-Glide™ angled applicator with rounded e...

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  • Hartz® UltraGuard Pro® Flea and Tick Drops for Dogs and Puppies 31-60lb

    The patented and easy-to-use Pro-Glide™ angled applicator with rounded e...

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  • Hartz® UltraGuard Pro® Flea and Tick Drops for Dogs and Puppies 15-30lb

    The patented and easy-to-use Pro-Glide™ angled applicator with rounded e...

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  • Hartz® UltraGuard® Dual Action™ Topical Flea and Tick Prevention for Dogs and Puppies 15-30lb

    Fast-acting topical drop formula kills fleas, flea eggs, deer and brown ...

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  • Hartz® UltraGuard® Dual Action™ Topical Flea and Tick Prevention for Dogs and Puppies 61-150lb

    Fast-acting topical drop formula kills fleas, flea eggs, deer and brown ...

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