K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21–55 lbs. | 6-Month Supply

Protect your dog from harmful pests with K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention, a trusted and veterinarian-recommended topical treatment specially formulated for large dogs weighing between 21–55 lbs. This advanced monthly treatment provides powerful protection against fleas, ticks, mosquitoes, biting flies, and lice, helping your dog stay healthy, active, and comfortable throughout the year.

K9 Advantix II not only kills fleas and ticks but also repels them before they bite. The fast-acting formula begins working within 12 hours and helps prevent flea infestations by eliminating flea eggs and larvae. Its waterproof formula ensures continuous protection even after bathing, swimming, or outdoor activities.

This convenient 6-month supply includes six easy-to-apply topical doses, offering long-lasting defense with one simple monthly application. Designed for active and outdoor dogs, the fragrance-free treatment spreads through your dog’s skin and coat for full-body protection without causing irritation.

Key Features:

• Specially made for large dogs weighing 21–55 lbs.
• Kills and repels fleas, ticks, mosquitoes, biting flies, and lice
• Starts killing fleas within 12 hours
• Prevents flea infestations by targeting flea eggs and larvae
• Waterproof protection for active dogs
• Easy monthly topical application
• Vet-recommended parasite protection
• Includes 6 monthly doses for long-term protection

Benefits for Your Dog:

K9 Advantix II helps reduce itching, scratching, and skin discomfort caused by fleas and pests. It also lowers the risk of tick-borne diseases and mosquito-transmitted infections. Whether your dog spends time indoors, outdoors, or both, this treatment provides reliable all-season protection.

How to Use:

Apply one tube directly to the skin at the back of your dog’s neck once every 30 days. For best results, apply to dry skin and avoid bathing your dog for 24 hours after treatment.

Why Pet Owners Trust K9 Advantix II:

Dog owners choose K9 Advantix II because of its fast-acting formula, long-lasting effectiveness, and broad-spectrum pest protection. It provides convenient monthly defense against dangerous parasites while keeping dogs comfortable and protected.

We aim to ship all orders quickly and efficiently. Please read our shipping guidelines below.

Order Processing Times

• Order Cutoff: Monday – Friday, 9AM to 6PM (PST)
• Handling Time: 3–4 business days
• Transit Time: 5–6 business days

Delivery Estimates

Standard Shipping: 8–10 working days (processing + transit)

Delivery times may vary due to location, weather, and courier delays.

Tracking Your Order

Once shipped, you will receive a tracking ID via email within 24 hours. You can monitor your delivery status in real time.

Lost or Stuck Orders

If your order is:

• Lost
• Returned to sender
• Stuck in customs

We will investigate and arrange a replacement with full tracking.

Shipping insurance is included for all orders.

Shipping Restrictions

We currently do not ship to:

• PO Boxes
• APO/FPO addresses

A physical address must be used at checkout.

Couriers Used

We partner with reliable carriers including:

• DHL
• FedEx
• USPS
• UPS

If your parcel shows “on hold” or delivery attempts fail, it is the customer's responsibility to coordinate with the courier.

Taxes & Customs Duties

All prices are listed in USD and exclude taxes/duties. Import fees depend on your country and are payable by the customer upon delivery.

Customer Support

For shipping inquiries:

Phone: +1 (526) 488-5239
Email: support@martinpetstore.com
Hours: Monday – Friday, 9AM–6PM (PST)