Hartz UltraGuard Dual Action Flea & Tick Topical for Small Dogs 5-14lbs, 3 Monthly Treatments vs K9 Advantix II Small Dog Flea & Tick Treatment
K9 Advantix II is the stronger choice for most small dogs. It kills fleas, ticks, mosquitoes, biting flies and lice, works within 12 hours, and covers dogs from 7 weeks old. Hartz UltraGuard Dual Action costs less per treatment and kills fleas, flea eggs and two tick types over 30 days, but it skips mosquitoes and flies and starts at 12 weeks. Reviewers rate K9 Advantix II higher, and owners report fewer breakthrough fleas on it.
- Choose the Hartz UltraGuard Dual Action if you want a simple three-month flea and egg treatment for a dog over 12 weeks and do not need mosquito or fly coverage.
- Choose the K9 Advantix II if you want the broadest parasite coverage, faster flea kill, and a formula safe for puppies as young as 7 weeks.
Prices
- Hartz UltraGuard Dual Action Flea & Tick Topical for Small Dogs 5-14lbs, 3 Monthly Treatments: $6.52 at Chewy.com (checked today)
- K9 Advantix II Small Dog Flea & Tick Treatment: $37.95 at eBay (last seen Nov 9)
- Difference: the Hartz UltraGuard Dual Action Flea & Tick Topical for Small Dogs 5-14lbs, 3 Monthly Treatments is $31.43 cheaper than the K9 Advantix II Small Dog Flea & Tick Treatment at the latest prices (Nov 9 and Nov 10)
