---
product_id: 77594398
title: "– Powerful Insect Killer Spray 300ml Aerosol | Instant Kill for Wasps, Spiders, Ants,Silverfish,Fleas, Flies & Crawling Insects | Fast-Acting Indoor & Outdoor Bug Spray"
brand: "karlsten"
price: "€ 33.37"
currency: EUR
in_stock: true
reviews_count: 8
category: "Karlsten"
url: https://www.desertcart.hr/products/77594398-powerful-insect-killer-spray-300ml-aerosol-instant-kill-for-wasps
store_origin: HR
region: Croatia
---

# Fast-acting formula Wide 1m² coverage Long-lasting protection – Powerful Insect Killer Spray 300ml Aerosol | Instant Kill for Wasps, Spiders, Ants,Silverfish,Fleas, Flies & Crawling Insects | Fast-Acting Indoor & Outdoor Bug Spray

**Brand:** karlsten
**Price:** € 33.37
**Availability:** ✅ In Stock

## Summary

> 🕷️ Defend your domain with lightning-fast, long-lasting insect control!

## Quick Answers

- **What is this?** – Powerful Insect Killer Spray 300ml Aerosol | Instant Kill for Wasps, Spiders, Ants,Silverfish,Fleas, Flies & Crawling Insects | Fast-Acting Indoor & Outdoor Bug Spray by karlsten
- **How much does it cost?** € 33.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/77594398-powerful-insect-killer-spray-300ml-aerosol-instant-kill-for-wasps)

## Best For

- karlsten enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Certified:** HSE-registered UK formula ensures professional-grade safety for your home.
- • **Effortless Application:** 10-second spray covers up to 1 square meter for quick, no-fuss pest control.
- • **Trusted Brand Assurance:** Karlsten’s quality guarantee means satisfaction and peace of mind every time.
- • **Instant Pest Eradication:** Zap spiders, wasps, ants & more in seconds with a powerful aerosol blast.
- • **Versatile Indoor & Outdoor Use:** Perfect for homes, garages, sheds, and workspaces—spray anywhere, anytime.

## Overview

Karlsten Multi-Insect Killer Aerosol 300ml delivers fast-acting, professional-grade pest elimination for spiders, wasps, fleas, ants, flies, and more. HSE-registered and safe for home use, its extra-strong formula provides up to 1 square meter of coverage with a quick 10-second spray, ideal for both indoor and outdoor environments. Trusted by UK households, it guarantees reliable, long-lasting protection to keep your living and working spaces pest-free.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: Works for fruit flies - I was really struggling to get rid of a fruit fly infestation from the summer (thanks to bananas?) eventually they were in every room. I’d get one room fly free and then turn around and they’d be in another room so I needed to do something drastic! These flies get absolutely EVERYWHERE! And all it takes is just 1 fly and the next day you’ll have hundreds more. And those hundreds more lay more and more eggs etc etc. (They can lay up to 500 eggs a day (each)!!) so it’s important to get every single last one in order to solve the problem. Anyway, nothing was working. I tried lots of different methods, sticky paper things that you hang from the ceiling, sticky window/wall stickers, natural home made and store bought ‘traps, and regular fly sprays but AGAIN nothing worked, (regular fly sprays don’t get these types of flies because they are too small for it to take effect). So I tried this spray ONCE in every room of the house and it’s killed them all completely. No flies at all now. Not even 1! It does smell awful, but it definitely works! I’d advise you to close all windows, spray the entire room then shut the door and leave the room otherwise the smell will choke you. It is a sort of citrus zesty smell but mixed with the chemicals, the smell will choke you if you remain in the room for too long. But rest assured it does the job once and for all! I also don’t grudge paying the price of £11 because it does kill them ALL. I read the reviews thinking it’ll probably be a waste of money but it definitely isn’t! And I’ve still got half a can left incase they come back next summer.
Review: Amazing stuff really works! - I had a fruit fly infestation so bad I didn’t want to enter that room. Tried fly papers etc, which only caught one. I sprayed this in the room once for a few seconds, left and shut the door. Came back 20-30 minutes later and they’d all gone except one on the wall, which I targeted right away. In the past I’ve tried ordinary fly sprays which never worked. This was incredible! I didn’t notice a smell because I shut the door to the room quickly and left. Totally worth the money for my peace of mind.Amazing!

## Features

- Causes serious eye irritation.
- Contains sensitizing substances. May produce an allergic reaction.
- Extremely flammable aerosol.
- Pressurised container: May burst if heated.
- Very toxic to aquatic life with long lasting effects.
- ✔ Fast-Acting Multi-Insect Killer Spray – Instantly eliminates spiders, fleas, wasps, flies,Spiders ants, and hornets with a powerful aerosol formula designed for quick and effective pest control.
- ✔ Trusted & HSE-Registered for Safe Home Use – Karlsten’s UK-approved insecticide is safe for use in homes, providing professional-grade protection from common household pests.
- ✔Wide Coverage & Easy Application – A 10-second spray treats up to 1 square meter, making it ideal for indoor and outdoor use, including homes, garages, sheds, and workspaces.
- ✔ Extra-Strong Formula for Maximum Effectiveness – Formulated to target and kill wasps, hornets, spiders, and other insects on contact, delivering long-lasting pest control.
- ✔ Premium Quality & Satisfaction Guaranteed – Karlsten is a trusted, long-standing brand offering 100% satisfaction and a quality-assured guarantee for reliable pest control solutions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F6CPQDX |
| Best Sellers Rank | 39,256 in Garden ( See Top 100 in Garden ) 82 in Indoor Insect & Pest Control 346 in Indoor Multi-Insect Control |
| Brand | Karlsten |
| Brand Name | Karlsten |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.4 out of 5 stars 448 Reviews |
| Item Form | Spray |
| Item Type Name | karlsten multi insect killer aerosol |
| Item Weight | 200 Grams |
| Item form | Spray |
| Item weight | 200 Grams |
| Liquid Volume | 300 Millilitres |
| Liquid volume | 300 Millilitres |
| Manufacturer | lodi uk |
| Model Number | 6000 |
| Part Number | 6000 |
| Specification Met | HSE |
| Specification met | HSE |
| Target Species | Flying & Crawling insects |
| Target species | Flying & Crawling insects |
| Unit Count | 1 aerosol |

## Product Details

- **Item form:** Spray
- **Item weight:** 200 Grams
- **Liquid volume:** 300 Millilitres
- **Brand:** Karlsten
- **Specification met:** HSE

## Images

![– Powerful Insect Killer Spray 300ml Aerosol | Instant Kill for Wasps, Spiders, Ants,Silverfish,Fleas, Flies & Crawling Insects | Fast-Acting Indoor & Outdoor Bug Spray - Image 1](https://m.media-amazon.com/images/I/61RHOwEkaEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works for fruit flies
*by J***G on 28 January 2022*

I was really struggling to get rid of a fruit fly infestation from the summer (thanks to bananas?) eventually they were in every room. I’d get one room fly free and then turn around and they’d be in another room so I needed to do something drastic! These flies get absolutely EVERYWHERE! And all it takes is just 1 fly and the next day you’ll have hundreds more. And those hundreds more lay more and more eggs etc etc. (They can lay up to 500 eggs a day (each)!!) so it’s important to get every single last one in order to solve the problem. Anyway, nothing was working. I tried lots of different methods, sticky paper things that you hang from the ceiling, sticky window/wall stickers, natural home made and store bought ‘traps, and regular fly sprays but AGAIN nothing worked, (regular fly sprays don’t get these types of flies because they are too small for it to take effect). So I tried this spray ONCE in every room of the house and it’s killed them all completely. No flies at all now. Not even 1! It does smell awful, but it definitely works! I’d advise you to close all windows, spray the entire room then shut the door and leave the room otherwise the smell will choke you. It is a sort of citrus zesty smell but mixed with the chemicals, the smell will choke you if you remain in the room for too long. But rest assured it does the job once and for all! I also don’t grudge paying the price of £11 because it does kill them ALL. I read the reviews thinking it’ll probably be a waste of money but it definitely isn’t! And I’ve still got half a can left incase they come back next summer.

### ⭐⭐⭐⭐⭐ Amazing stuff really works!
*by S***Y on 13 August 2024*

I had a fruit fly infestation so bad I didn’t want to enter that room. Tried fly papers etc, which only caught one. I sprayed this in the room once for a few seconds, left and shut the door. Came back 20-30 minutes later and they’d all gone except one on the wall, which I targeted right away. In the past I’ve tried ordinary fly sprays which never worked. This was incredible! I didn’t notice a smell because I shut the door to the room quickly and left. Totally worth the money for my peace of mind.Amazing!

### ⭐⭐⭐⭐⭐ The pests are gone!
*by M***T on 11 August 2024*

After finding Solitary Wood Wasps and another unknown insect burrowing into my garden sleepers, I spent a long time trying to find the right thing to treat them. I don’t mind insects in the garden, but these were creating huge piles of sawdust each day, from tunnelling inside the wood. After one application of this spray, all activity has stopped and they have gone. It smells perfectly fine, and I like that it’s an aerosol, so no drips in the garden for the dogs to be interested in. I would buy this again.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-13*