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Best Hartz Flea Collars

Discover Hartz flea collars offering up to 14 months of flea and tick protection for dogs, puppies, cats, and kittens. Affordable, effective solutions with options for various neck sizes and reflective designs.

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Hartz UltraGuard ProMax Flea & Tick Collar for Dogs - 12 Months Protection, Soft Comfortable 2 Pack Gray

Hartz UltraGuard ProMax Flea & Tick Collar delivers 12 months of flea, tick, and mosquito protection for dogs 12 weeks and older via two 6-month collars. Its soft, flexible design and waterproof formula make it perfect for active dogs that swim or play in the rain.

  • Year-long defense with two collars killing fleas, ticks, and preventing flea eggs from hatching
  • Ultra-soft, flexible material for all-day comfort without stiffness
  • Waterproof protection stays effective during swims, baths, or rain
  • Repels mosquitoes for comprehensive pest control
  • One-size-fits-all adjustable design suits every dog breed and size

Provides up to 12 months of continuous protection per pack. Soft and comfortable for daily wear on puppies and adult dogs. Remains effective even when wet.

Not suitable for puppies under 12 weeks old. May have initial chemical odor from active ingredients. Requires replacement every 6 months per collar for ongoing protection.

Hartz UltraGuard Plus Reflective Flea & Tick Collar for Dogs & Puppies - 7 Months Protection, Water-Resistant, Up to 22" Neck

Hartz UltraGuard Plus Flea & Tick Collar kills and repels fleas and ticks while preventing flea eggs from hatching for 7 months on dogs and puppies 12 weeks and older with necks up to 22 inches. Its reflective orange design boosts nighttime safety up to 300 feet, ideal for owners needing convenient, long-term parasite control.

  • Delivers 7 months of flea and tick kill, repel, and flea egg prevention to break the infestation cycle
  • Reflective strip enhances visibility up to 300 feet for safer nighttime walks
  • Water-resistant formula maintains effectiveness through rain and play
  • Fits comfortably on necks up to 22 inches for dogs and puppies 12 weeks+
  • Easy snap-on application with adjustable fit for growing pups

Long-lasting 7-month protection reduces frequent reapplication. Prevents flea eggs from hatching to stop reinfestation. Reflective technology adds nighttime safety.

May irritate sensitive skin if applied too tightly. Not for puppies under 12 weeks old. Avoid use with other flea/tick products within 30 days.

Hartz UltraGuard Pro Flea & Tick Collar for Cats & Kittens - 7 Months Protection, Reflective, Water-Resistant

Hartz UltraGuard Pro Flea & Tick Collar kills and repels fleas, ticks, eggs, and larvae for 7 months on cats and kittens 12 weeks and older. Its water-resistant design and reflective strip up to 450 feet offer reliable protection and nighttime visibility for active cats.

  • Delivers 7 months of flea and tick killing plus egg prevention to break the infestation cycle
  • Water-resistant formula stays effective through rain and baths
  • Reflective strip boosts visibility up to 450 feet for safer nighttime adventures
  • Breakaway safety release prevents choking hazards during play
  • Fresh scent keeps your cat comfortable without strong odors

Long-lasting 7-month protection reduces frequent treatments. Targets fleas, ticks, eggs, and larvae comprehensively. Reflective and water-resistant for practical daily use.

May irritate sensitive skin if applied too tightly. Not for kittens under 12 weeks old. Avoid use within 30 days of other flea/tick products.

Hartz UltraGuard Flea & Tick Collar for Cats & Kittens - 7 Months Kill/Repel Protection, Water-Resistant, Breakaway Safety

Hartz UltraGuard Flea & Tick Collar kills and repels fleas and ticks while preventing flea eggs from hatching for 7 months on cats and kittens 12 weeks and older. Its water-resistant design and breakaway safety release make it perfect for active cats needing reliable, long-term parasite control.

  • Provides 7 months of continuous flea and tick kill/repel plus flea egg prevention for worry-free protection
  • Fresh scent keeps your cat smelling great while staying parasite-free
  • Water-resistant formula maintains effectiveness through rain or baths
  • Breakaway safety snap prevents choking hazards during play
  • Fits comfortably loose for growth and can be worn with regular collars

Long-lasting 7-month protection reduces frequent reapplication. Water-resistant for all-weather reliability. Breakaway design enhances pet safety.

Not suitable for kittens under 12 weeks old. May cause skin irritation in sensitive cats requiring monitoring. Cannot be used within 30 days of other flea/tick treatments.

Hartz UltraGuard ProMax Flea & Tick Collar for Cats & Kittens - 14 Months Protection, Soft Comfortable, 2 Pack

Hartz UltraGuard ProMax Flea & Tick Collar for Cats provides 14 months of protection via two 7-month collars that kill fleas, ticks, eggs, and larvae while preventing hatching. Cat owners with single or multi-cat households need this for soft, full-body flea prevention starting at 12 weeks old.

  • Enjoy 14 months of uninterrupted flea and tick defense with two collars per pack
  • Soft, flexible material keeps cats comfortable for all-day wear without stiffness
  • Full-body coverage releases active ingredients across skin to kill pests and stop eggs from hatching
  • Breakaway design ensures safety if caught on objects
  • One-size-fits-all adjustable fit for cats and kittens 12 weeks and older

Long-lasting 7 months per collar for reliable prevention. Comfort technology reduces irritation with outward ridges. Comprehensive pest control including eggs and larvae.

Chemical-based formula may irritate sensitive skin. Requires continuous wear for maximum effectiveness. Not suitable for kittens under 12 weeks old.

Hartz UltraGuard Purple Flea & Tick Collar for Cats & Kittens - 7 Months Protection, Water-Resistant

Hartz UltraGuard Purple Flea & Tick Collar kills and repels fleas and ticks for 7 months on cats and kittens 12 weeks and older. Its water-resistant design and breakaway safety release make it perfect for active cats needing reliable, long-term parasite protection.

  • Delivers 7 months of continuous flea and tick kill and repellency for worry-free protection
  • Fresh scent keeps your cat smelling great while staying parasite-free
  • Water-resistant formula maintains effectiveness through rain and baths
  • Breakaway safety snap prevents choking hazards during play
  • Wear alongside regular collar for added style without compromising protection

Long-lasting 7-month protection reduces frequent reapplication. Water-resistant for all-weather reliability. Breakaway design enhances pet safety.

Not suitable for kittens under 12 weeks old. Potential for skin irritation in sensitive cats. Cannot be used with other flea/tick treatments within 30 days.

Hartz UltraGuard Pro Reflective Flea & Tick Collar for Dogs & Puppies - 7 Months Protection, Water-Resistant, Nighttime Visibility

The Hartz UltraGuard Pro Reflective Flea & Tick Collar kills and repels fleas, ticks, eggs, and larvae for 7 months on dogs and puppies 12 weeks and older with necks up to 26 inches. Its Reflect-X Shield boosts nighttime safety by reflecting light up to 450 feet, ideal for active pet owners needing reliable, water-resistant parasite control.

  • Delivers 7 months of continuous protection against fleas, ticks, eggs, and larvae to break the flea life cycle
  • Reflective strip enhances visibility up to 450 feet for safer nighttime walks
  • Water-resistant formula stays effective even after rain or swims
  • Fits comfortably on necks up to 26 inches, suitable for puppies 12 weeks and older
  • Fresh scent keeps your dog smelling great while protected

Long-lasting 7-month efficacy reduces need for frequent reapplications. Multi-pest control including eggs prevents reinfestation. Reflective safety feature improves visibility in low light.

Not suitable for puppies under 12 weeks old. May cause skin irritation in sensitive dogs, requiring monitoring. Cannot be used with other flea/tick treatments within 30 days.

Hartz UltraGuard Flea & Tick Collar for Dogs & Puppies - 7 Months Protection, Water-Resistant, Fresh Scent, Up to 20" Necks

Hartz UltraGuard Flea & Tick Collar kills and repels fleas and ticks for 7 months on dogs and puppies 12 weeks and older with necks up to 20 inches. Its water-resistant design and fresh scent offer reliable, low-maintenance protection for active pups.

  • Delivers 7 months of flea and tick kill and repellency for worry-free protection
  • Water-resistant formula stays effective through rain and playtime splashes
  • Fresh scent keeps your dog smelling pleasant while fighting parasites
  • Adjustable fit for necks up to 20 inches, allowing growth and comfort
  • Wear alongside regular collar for combined style and safety

Long-lasting 7-month protection reduces frequent reapplication. Water-resistant for reliable performance in wet conditions. Fresh scent enhances user experience without strong odors.

May irritate sensitive skin; monitor and loosen if needed. Not for puppies under 12 weeks or medicated/debilitated dogs. Avoid use with other flea treatments within 30 days.

Protecting your furry friends from fleas and ticks doesn't have to be a hassle. Hartz flea collars deliver reliable, long-lasting defense tailored for dogs, puppies, cats, and kittens, with options spanning 7 to 14 months of continuous protection. Whether you're dealing with an active pup or a lounging kitten, these collars provide a convenient, no-fuss solution to keep pests at bay while you focus on the fun parts of pet parenthood.

Why Choose Hartz Flea Collars?

Hartz has built a strong reputation in pet care for affordable, science-backed products that prioritize safety and efficacy. Their flea collars stand out with extended protection periods, water-resistant formulas, and comfortable designs that won't irritate your pet's skin. Unlike spot-on treatments that require monthly reapplication, these collars offer set-it-and-forget-it convenience, killing fleas and ticks upon contact and preventing reinfestation.

As part of our broader Flea & Tick Control selection, Hartz collars fit seamlessly into comprehensive pet health routines. They're especially popular among budget-conscious owners seeking quality without compromise.

Key Features to Consider in Hartz Flea Collars

When shopping Hartz flea collars, focus on these essential features to match your pet's needs:

  • Protection Duration: Ranges from 7 months for standard models to 12-14 months for ProMax versions, ideal for low-maintenance care.
  • Pet Type: Dedicated formulas for dogs/puppies or cats/kittens ensure safety and optimal efficacy.
  • Neck Size and Comfort: Options for necks up to 20-22 inches, with soft, flexible materials that adjust comfortably.
  • Added Safety: Reflective strips on Pro and Plus models enhance visibility during walks or nighttime adventures.
  • Value Packs: ProMax 2-packs provide extended supply for multi-pet households.

These features make Hartz collars versatile for indoor/outdoor pets, from playful puppies to senior cats.

Comparing Hartz Flea Collar Models

Hartz offers a lineup that lets you choose based on duration, pet size, and extras. For dogs and puppies, the classic UltraGuard white collar provides 7 months of protection for necks up to 20 inches—perfect for starters. Step up to the UltraGuard Pro Reflective for added visibility or the Plus Reflective Orange for larger necks up to 22 inches.

Power users love the ProMax 12-month 2-pack in gray, offering soft comfort and double the supply. On the cat side, the Purple UltraGuard delivers 7 months reliably, while the Pro and 14-month ProMax 2-pack cater to kittens and adults alike. The standard white cat collar rounds out basics.

To decide, consider your pet's lifestyle: short-term for young pups transitioning to solids, or long-term ProMax for year-round outdoor exposure. If you're exploring alternatives, check out Seresto Flea Collars for prescription-strength options.

Common Use Cases for Hartz Flea Collars

These collars shine in everyday scenarios:

  • Preventive Care: Ideal for pets in flea-prone areas, like backyards or parks.
  • Post-Infestation Recovery: Kills existing fleas and repels new ones quickly.
  • Travel and Boarding: Long protection means no worries during vacations.
  • Multi-Pet Homes: Matching collars simplify routine for dogs and cats alike.

Within the Dogs category or our full Pet Supplies range, Hartz collars integrate easily with shampoos, sprays, and beds for total protection. For broader options, browse the parent Flea Collars collection.

Frequently Asked Questions

How long does a Hartz flea collar last?

Protection varies by model: 7 months for UltraGuard standards, up to 12 months for dog ProMax, and 14 months for cat ProMax. Replace promptly when efficacy wanes.

Are Hartz flea collars safe for puppies and kittens?

Yes, most are formulated for puppies 12 weeks+ and kittens 12 weeks+, but always check specific labels and consult your vet for younger pets.

Hartz vs. other brands: What sets them apart?

Hartz excels in affordability and extended durations without subscriptions, though premium competitors like Seresto may offer different active ingredients for sensitivities.

Which Hartz collar should I choose for my pet?

For small dogs, go UltraGuard white; larger or active ones, reflective Pro/Plus. Cats prefer Purple or ProMax for longer coverage. Match to neck size and activity level.

Does Hartz offer a warranty or support?

Hartz provides satisfaction guarantees on many products—contact their customer service for replacements if issues arise. Check packaging for details.

Ready to safeguard your pet? Explore these Hartz flea collars today and enjoy peace of mind with proven protection.