---
product_id: 457282504
title: "Bayer K9 Advantix II (11-20 lbs) 6-doses"
brand: "bayer"
price: "₨104448"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/457282504-bayer-k9-advantix-ii-11-20-lbs-6-doses
store_origin: LK
region: Sri Lanka
---

# Kills fleas in 12 hours 6-month continuous treatment Protects for 4 weeks per dose Bayer K9 Advantix II (11-20 lbs) 6-doses

**Brand:** bayer
**Price:** ₨104448
**Availability:** ✅ In Stock

## Summary

> 🐾 Stay ahead of pests—because your dog deserves VIP protection!

## Quick Answers

- **What is this?** Bayer K9 Advantix II (11-20 lbs) 6-doses by bayer
- **How much does it cost?** ₨104448 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/457282504-bayer-k9-advantix-ii-11-20-lbs-6-doses)

## Best For

- bayer enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Pest Defense:** Repels mosquitoes, biting flies, ticks, and lice for all-around protection
- • **Month-Long Protection:** Each dose shields your dog for a full 4 weeks, rain or shine
- • **Rapid Flea Elimination:** Kills fleas within 12 hours to stop infestations fast
- • **Easy Monthly Application:** 6 easy-squeeze tubes for hassle-free, half-year coverage
- • **Advanced Formula with IGR:** Stops flea eggs and larvae, breaking the life cycle before it starts

## Overview

Bayer K9 Advantix II is a potent topical treatment designed for adult dogs weighing 11-20 lbs. It kills fleas within 12 hours and provides up to 4 weeks of protection per dose against fleas, ticks, lice, mosquitoes, and biting flies. Featuring an advanced formula with insect growth regulators, it disrupts flea life cycles and remains effective even after your dog gets wet. The pack includes 6 monthly doses, ensuring continuous, hassle-free pest control for half a year.

## Description

Bayer K9 Advantix II (11-20 lbs) 6-doses

## Features

- flea & tick topical treatment
- adult dogs 11 lb - 20 lb
- 6 doses = 6 month treatment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | dog |
| Package Dimensions | 16.64 x 11.3 x 3.68 cm; 18.14 g |
| Manufacturer reference | 724089616180 |
| Pet Life Stage | Adult |
| Size | 6 Count (Pack of 1) |
| Volume | 12 Milliliters |
| Number of Items | 1 |
| Quantity | 1 |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 18.1 g |

## Product Details

- **Brand:** Bayer
- **Scent:** Unscented
- **Item weight:** 18 g
- **Active Ingredients:** Pyriproxyfen
- **Item volume:** 12 Milliliters

## Images

![Bayer K9 Advantix II (11-20 lbs) 6-doses - Image 1](https://m.media-amazon.com/images/I/71Ku3Q4IlfL.jpg)

## Questions & Answers

**Q: The headline says this is a 6 pack but the description at bottom says 4 pack.  Which is correct?**
A: This is a 6 pack.  I don't see 4 pack anywhere on the bottom of my screen when I look on this listing.  Maybe I'm missing it?  It is definitely a 6 pack in the heading, and the picture.  Also, on my listing, my descriptions further clarifies it for the customer by reading "I am a licensed veterinarian and I guarantee this product is purchased directly from Bayer. This is the NEWEST Version of authentic Advantix II, 6-month supply. It is USA EPA Approved and does not expire..."  I hope this helps.

**Q: What's the expiration date on the in stock supply?  Thanks!**
A: These don't have expiration dates.  Once you open the tube it's 30 days.

---

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**Shop now:** [https://www.desertcart.lk/products/457282504-bayer-k9-advantix-ii-11-20-lbs-6-doses](https://www.desertcart.lk/products/457282504-bayer-k9-advantix-ii-11-20-lbs-6-doses)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-04*