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K9 Advantix II for Medium Dogs 11-20 lbs Flea Tick Mosquito Treatment 6 Doses

K9 Advantix II for Medium Dogs 11-20 lbs Flea Tick Mosquito Treatment 6 Doses

$55.40
$55.40
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Returns & Refunds Policy

30-Day Return Policy

We offer a 30-day return policy from the date of delivery.

To qualify for a return:


  • The item must be unused

  • The item must be in original packaging

  • Proof of purchase is required

Non-Returnable Items

The following items cannot be returned:


  • Opened pet food or treats

  • Personalized products

  • Clearance or final sale items

  • Hygiene-related pet products

Damaged or Incorrect Items

If you receive a damaged or incorrect product:


  1. Contact us within 72 hours of delivery

  2. Provide photos of the product and packaging

  3. We will arrange a replacement or full refund

Return Shipping


  • If the return is due to our error (damaged or incorrect item), we cover return shipping

  • If the return is due to customer preference, the customer pays return shipping

Refund Processing

Once we receive and inspect the returned item:


  • Refunds will be issued to the original payment method

  • Processing time: 5–10 business days
View full product details

Keeping your dog safe from fleas and ticks is important, especially if they love spending time outdoors. K9 Advantix II for Medium Dogs is made for dogs weighing between 11 and 20 lbs and offers reliable monthly protection against fleas, ticks, mosquitoes, biting flies, and lice.

This easy-to-use topical treatment starts working quickly and helps kill fleas within 12 hours of application. It also repels pests before they bite, helping your dog stay comfortable and protected throughout the month. The formula works by targeting adult fleas, flea eggs, and larvae to help reduce reinfestation in your home.

Each pack includes 6 doses, giving your dog up to 6 months of continuous protection. The waterproof formula remains effective after bathing or swimming once fully dried, making it a great option for active dogs.K9 Advantix II is simple to apply and does not require a prescription. Just apply one tube every 30 days to help protect your dog from common parasites that can cause itching, irritation, and discomfort.

Product Benefits

  • Suitable for medium dogs weighing 11-20 lbs
  • Helps kill fleas within 12 hours
  • Repels ticks, mosquitoes, biting flies, and lice
  • Waterproof formula after 24 hours
  • Easy monthly application
  • 6-dose pack for long-lasting protection
  • Helps control flea eggs and larvae
  • Suitable for dogs and puppies over 7 weeks old

How to Use

Apply the contents of one tube directly to your dog’s skin between the shoulder blades once every month. Make sure your dog’s coat is dry before application for the best results.

Why Pet Owners Choose K9 Advantix II

Many dog owners trust K9 Advantix II because it offers broad protection in one simple treatment. Whether your dog enjoys walks in the park, outdoor playtime, or daily adventures, this treatment helps keep pests away and supports your dog’s comfort and wellbeing.

FAQs

1-How long does K9 Advantix II last?

Each dose provides protection for up to 30 days.

2-Can I use this product on puppies?

Yes, it is suitable for puppies over 7 weeks old weighing between 11 and 20 lbs.

3-Is the formula waterproof?

Yes, once dried after 24 hours, the treatment remains effective even after bathing or swimming.

4-What parasites does it protect against?

It helps protect against fleas, ticks, mosquitoes, biting flies, and lice.

5-How many treatments are included?

This pack contains 6 monthly doses.