Top-selling flea & tick prevention pick on Amazon

Hartz UltraGuard Pro Reflective Flea & Tick Collar for Dogs

Name: Hartz UltraGuard Pro Reflective Flea & Tick Collar for Dogs
Brand: Hartz
Price: 7 USD
Availability: InStock

Hartz

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7 Month Flea and Tick Prevention Per Collar, 1 Count

About $8

Check price on Amazon

Our take

Hartz UltraGuard Pro Reflective Flea & Tick Collar for Dogs. Per the Amazon listing: Kills and repels fleas, ticks, flea eggs and flea larvae, plus prevents flea eggs from hatching for 7 months. When we checked on Oct 3, 2026, it was #4 on Amazon's Best Sellers list for Dog Flea Collars. Rated 4.1 out of 5 from 14,720 Amazon ratings at the time.

Who it's for: Shoppers comparing popular, well-reviewed flea & tick prevention options (rated 4.1 out of 5 on Amazon when we checked).

Skip if: You need a specific size, material, or feature this listing does not offer; check the options on Amazon first.

Pros

Kills and repels fleas, ticks, flea eggs and flea larvae, plus prevents flea eggs from hatching for 7 months.
Reflective strip reflects direct light up to 450 feet for added visibility.
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 26 inches.

Cons

Not tested hands-on by us yet; details here come from the Amazon listing
Sizes, colors, and bundles vary by listing option, so confirm the exact variant before you buy
Amazon rating (4.1 out of 5 when we checked) trails most picks in this category