Pay in installments of $16.62 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Oct 3 - Oct 8
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
K9 Advantix II Flea, Tick & Mosquito Treatment & Prevention for Large DogsK9 Advantix II Large Dog is the veterinarian recommended formula that helps defend your dog against five pests: fleas, ticks, mosquitoes, biting flies and lice. And unlike other treatments, K9 Advantix II kills and repels fleas, ticks and mosquitoes. K9 Advantix II topical treatment gets straight to work killing fleas on dogs within 12 hours of initial application. This formula stops existing flea infestations and prevents new ones by killing adult
K9 Advantix II Large Dog is the veterinarian-recommended formula that helps defend your dog against five pests: fleas, ticks, mosquitoes, biting flies and lice. And unlike other treatments, K9 Advantix II kills and repels fleas, ticks and mosquitoes. K9 Advantix II topical treatment gets straight to work killing fleas on dogs within 12 hours of initial application. This formula stops existing flea infestations and prevents new ones by killing adult fleas on contact so they can’t lay eggs and they don’t have to bite your dog to die. Fleas, ticks, mosquitoes and other pests not only cause discomfort; they may also transmit disease. Monthly use of K9 Advantix II is important to protect your dog against fleas that may cause transmission of tapeworms. This formula also kills fleas which may cause Flea Allergy Dermatitis and flea bite anemia. That’s why K9 Advantix II Large Dog topical, spot-on formula makes application simple - going on in seconds. It's easier than a flea collar and there are no hard-to-swallow pills. You’ll also love that K9 Advantix II is fragrance-free and waterproof after 24 hours of application. Check the product label for information on application and potential side effects. K9 Advantix II pest protection is effective on both indoor and outdoor dogs. Your dog should be at least 7 weeks old and weigh to use K9 Advantix II Large Dog. For the ultimate convenience in care, K9 Advantix II is available over the counter – no prescription needed. Once K9 Advantix II is applied, your dog is ready to get right back to big-pup cuddles and racing around the park. K9 Advantix II Large Dog is a trademark of Elanco or its affiliates.
Key Features
-
K9 Advantix II treatment & prevention protects dogs from fleas, ticks, mosquitoes, biting flies and lice
-
Kills fleas within 12 hours of application
-
Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
-
Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
-
No prescription needed
Directions for Use
Use only on dogs. DO NOT USE ON CATS or other animals. Do not apply to dogs weighing less than 4 lbs. Remove applicator tube from the package. Use scissors and peel down foil. Hold applicator tube in an upright position. Pull cap off tube. Turn cap around and place other end of cap back on tube. Twist cap to break seal, then remove cap from tube. The dog should be standing for easy application. Evenly apply entire contents of the tube along the top of the dog's back, from the shoulder down to the base of the tail. The number of spots depends on the size and weight of your dog (please refer to the product label). At each spot, part the hair until skin is visible. Place the tip of the tube on the skin and gently squeeze to expel a portion of the solution on the skin. Do not apply an excessive amount of solution at any one spot that could cause some of the solution to run off the side of the dog. Do not get this product in your dog’s eyes, or allow your dog to ingest this product.
Storage Instructions
Store in a cool, dry place inaccessible to children and pets. Protect from freezing.
Active Ingredients
Imidacloprid, Permethrin, Pyriproxyfen
Product Form
- Topical
Pet Size
- Large
Pet Lifestage
- 7 weeks and older
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 13 reviews
Sort
Product Reviews
★★★★★ 5
Great customer service.
Glad I bought the protection. The vaccume worked great for a while then quit holding a charge. They refunded my purchase price (Amazon gift card).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
★★★★★ 5
Game changer..get one!
My floors had varying levels of dirt (think heavy traffic area vs lighter traffic areas) and the detection system masterfully targeted areas until they were super clean. This is a good value, time saving and elevated my quality of life.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
★★★★★ 5
Works great, might have to use distilled water if you have hard water
So far it's great!
It uses a LOT of water on the first clean (and maybe also because of using the 'Freo' ai mode) you can use tap water, but in areas with hard water, you might need to go through a lot of distilled water.
I think on future cleaning jobs it's supposed to use less water though. And you can adjust the cleaning level to a lower setting so that it doesn't use as much.
The app takes a little while to get used to, because there are many options and menus. But still very nice to have and use.
The vacuum has a dust bin with a very basic filter (needs replaced every 30 days if used), but if you want more of 'Hepa' clean air, you would have to use another type of vacuum before mopping.
It also doesn't get close to the edges of some areas for some reason, even thought it could fit.
Still, for what it is, it's a great product that will cut down on a lot of mopping time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
★★★★★ 5
Worth every penny. Highly recommend!
To say I love my Narwal robotic mop and vacuum is an understatement—total game changer. I can’t imagine going back to any other robotic vacuum.
I have two dogs, including a Jack Russell who sheds like Pig-Pen from Peanuts—basically a walking cloud of hair—and this thing handles it effortlessly.
The vacuum + mopping combo is amazing, and it’s so easy to use and maintain. It truly does all the dirty work for me.
I did have a small hiccup about two months in, but Narwal support helped me reset it quickly and it’s been perfect ever since (I definitely panicked for a minute 😅).
Worth every penny. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 1
Unreliable. Doesn't work.
Has been every unreliable. Misses lots of spots with horrible mapping. Doesn't go some places for some reason. We moved the furniture, tried remapping but nothing works. Randomly goes in circles in the same spot at times. Updated firmware, spoke to support etc. When using vacuum and Mop option, it skips carpets and doesn't go back to do them afterwards. The whole programming is unreliable. Don't BUY. Can't return it past the warranty/return period.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026