---
product_id: 287176093
title: "Bayer K9 Advantix II Flea, Tick & Mosquito Prevention for Medium Dogs, 11-20 lbs 11-20 lb 710546020004"
brand: "k9 advantix"
price: "23218 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/287176093-bayer-k9-advantix-ii-flea-tick-and-mosquito-prevention-medium
store_origin: IS
region: Iceland
---

# Waterproof formula Kills fleas within 12 hours 30-day continuous protection Bayer K9 Advantix II Flea, Tick & Mosquito Prevention for Medium Dogs, 11-20 lbs 11-20 lb 710546020004

**Brand:** k9 advantix
**Price:** 23218 kr
**Availability:** ✅ In Stock

## Summary

> 🐾 Stay ahead of pests, keep your pup unstoppable!

## Quick Answers

- **What is this?** Bayer K9 Advantix II Flea, Tick & Mosquito Prevention for Medium Dogs, 11-20 lbs 11-20 lb 710546020004 by k9 advantix
- **How much does it cost?** 23218 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/287176093-bayer-k9-advantix-ii-flea-tick-and-mosquito-prevention-medium)

## Best For

- k9 advantix enthusiasts

## Why This Product

- Trusted k9 advantix brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Month-Long Shield:** One topical application protects your dog for a full 30 days.
- • **Waterproof & Active:** Keeps working even after baths or weekly swims—because life happens.
- • **Rapid Action Defense:** Starts killing fleas in just 12 hours—no waiting, no worries.
- • **Multi-Pest Protection:** Repels and kills fleas, ticks, mosquitoes, biting flies, and lice.
- • **Vet-Recommended Formula:** Trusted by professionals to keep your furry friend pest-free.

## Overview

Bayer K9 Advantix II is a veterinarian-recommended topical treatment for medium dogs (11-20 lbs) that kills and repels fleas, ticks, mosquitoes, biting flies, and lice. Its fast-acting formula starts killing fleas within 12 hours and provides continuous protection for 30 days, even after swimming or bathing. The product includes four monthly applications and uses a unique combination of imidacloprid, permethrin, and pyriproxyfen to disrupt flea development and ensure comprehensive pest control.

## Description

Bayer K9 Advantix II Flea, Tick & Mosquito Prevention for Medium Dogs, 11-20 lbs 11-20 lb 710546020004

## Features

- New packaging, same formula: Contains four one month applications of Bayer K9 Advantix II topical flea, tick and mosquito prevention for medium dogs 11 to 20 pounds
- K9 Advantix II kills through contact, so fleas, ticks and mosquitoes don't have to bite your dog to die
- Veterinarian recommended
- Repels and kills fleas, ticks and mosquitoes
- Topical treatment is easy to apply, starts working to kill fleas within 12 hours and keeps working for 30 days

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Dog |
| Product Dimensions | 19.69 x 2.54 x 10.8 cm; 22.68 g |
| Item model number | 86315157 |
| Pet Life Stage | All Life Stages |
| Flavor | Other |
| Item Form | Topical |
| Allergen Information | Abalone Free |
| Color | 11-20 lbs |
| Size | 11-20 lb |
| Volume | 4 Milliliters |
| Number of Items | 4 |
| Quantity | 1 |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 22.7 g |

## Product Details

- **Brand:** K9 Advantix
- **Item form:** Topical
- **Scent:** Unscented
- **Item weight:** 0.05 Pounds
- **Active Ingredients:** Permethrin

## Images

![Bayer K9 Advantix II Flea, Tick & Mosquito Prevention for Medium Dogs, 11-20 lbs 11-20 lb 710546020004 - Image 1](https://m.media-amazon.com/images/I/71SCebDcfqL.jpg)

## Frequently Bought Together

- K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 4-Mo Supply
- K9 Advantix II XL Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs Over 55 lbs. | 4-Mo Supply
- K9 Advantix II Large Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 21 - 55 lbs. | 4-Mo Supply

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**Shop now:** [https://www.desertcart.is/products/287176093-bayer-k9-advantix-ii-flea-tick-and-mosquito-prevention-medium](https://www.desertcart.is/products/287176093-bayer-k9-advantix-ii-flea-tick-and-mosquito-prevention-medium)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-08*