--- product_id: 52802688 title: "Karlsten Bug & Insect Destroyer: Flea Killer Spray" brand: "karlsten" price: "C$3402" currency: NIO in_stock: null reviews_count: 8 category: "Karlsten" url: https://www.desertcart.ni/products/52802688-karlsten-bug-and-insect-destroyer-flea-killer-spray store_origin: NI region: Nicaragua --- # Instant flea kill on contact Safe for indoor & outdoor use Long-lasting protective barrier Karlsten Bug & Insect Destroyer: Flea Killer Spray **Brand:** karlsten **Price:** C$3402 **Availability:** ❌ Out of Stock ## Summary > ⚡ Defend your domain: Fleas don’t stand a chance! ## Quick Answers - **What is this?** Karlsten Bug & Insect Destroyer: Flea Killer Spray by karlsten - **How much does it cost?** C$3402 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/52802688-karlsten-bug-and-insect-destroyer-flea-killer-spray) ## 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 - • **Trusted & Tested Quality:** HSE registered and approved for safe home use with satisfaction guaranteed. - • **Cost-Effective Pest Control:** Avoid wasting money on ineffective sprays—experience proven results with Karlsten. - • **Dual Indoor & Outdoor Formula:** Versatile use to protect every corner of your living space. - • **Lightning-Fast Flea Elimination:** Kills fleas instantly on contact—no more waiting, no more itching. - • **Extended Flea Barrier Protection:** Creates a durable shield that keeps your home flea-free for longer. ## Overview Karlsten Flea Killer Spray delivers rapid, on-contact flea elimination combined with a long-lasting protective barrier. Formulated for both indoor and outdoor use, this 500ml spray is HSE registered and trusted for effective pest control, ensuring your home stays flea-free with professional-grade results. ## Description Great prices on your favourite Gardening brands, and free delivery on eligible orders. Review: Works well - Bought this few times now, very helpful to cope with the fear Review: After a lot of research... - After extensive research on bed bug treatments, I can confidently say that the effectiveness of any product depends on your preparation. Simply spraying a little on your mattress won’t cut it—you need to remove all clothes from cupboards, spray inside them, treat cracks in the floor, the entire mattress, and all parts of the bed frame. However, the bugs can be hiding anywhere and are attracted to the carbon dioxide, so just because you don't see them, doesn't mean they are gone. The pests can hibernate for 6 months without food so it is a pain. This Bed Bug Spray does kill on contact and provides some lasting protection, but if you have a heavy infestation, one bottle won’t be enough. In my case, I had a smaller bedroom with a single bed that was heavily infested, and even with professional-grade treatments like Provecta, C40 WP, and Cimetrol RFU, it still took several applications over multiple visits to fully resolve the issue. While this is a good starting point for minor infestations or preventative treatment, you’ll need several bottles for anything more serious. By the time you buy multiple bottles, you might be better off investing in professional treatment. That’s the main reason I’m giving this 4 stars instead of 5—it works, but it’s pricey for the amount you’ll likely need. Overall, a good product, but be prepared to invest in multiple applications for best results. I also contacted the helpdesk to confirm I could spray this on the mattress and they confirmed, their customer support was very responsive and helpful. ## Features - Use biocides safely. Always read the label and product information before use. - Very toxic to aquatic life with long lasting effects. - Very toxic to aquatic life. - FLEA KILLER - Lightning-fast formula kills flea Instantly. Protect your home and eliminate flea infestations with this pest control cypermethrin solution. Save yourself the cost of buying ineffective flea killer sprays flooded in the market - KILLS ON CONTACT- Specifically formulated to Target and kill fleas. Tried those ineffective flea killer sprays and failed? Well, ours will not fail, choose use and you will be fascinated by the results. - LONG LASTING SPRAY - Not Only fast acting but also long-lasting. Creates a Flea barrier that the common Insect Killer doesn't provide. Kills Fast and Keeps fleas out. Prevent any flea infestation or further spread with the right flea killer spray. - TRUSTED QUALITY- Based on our new HSE registered improved spray comes with 100% satisfaction and quality assurance. Tested and approved as appropriate for use within your home. Take caution, keep pets and children away. Not ideal for vegetation. - PROTECT YOUR HOME - Karlsten rapid response not only fast acting but also long-lasting. Creates a bug barrier that the common insect killer doesn't provide. Kills fast and keeps your home flea-free. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MZE807A | | Active Ingredients | Permethrin | | Best Sellers Rank | 756 in Garden ( See Top 100 in Garden ) 42 in Ant Control | | Brand Name | Karlsten | | Customer Reviews | 4.1 4.1 out of 5 stars (4,984) | | Item Form | Spray | | Item Type Name | Spray for Fast Acting Elimination of Irritating Fleas. Trigger colours may vary | | Item Weight | 0.2 Kilograms | | Liquid Volume | 500 Millilitres | | Manufacturer | Lodi uk | | Model Number | 2011 | | Part Number | 2011 | | Specification Met | HSE | | Target Species | Flea | | Unit Count | 1.0 count | ## Product Details - **Active ingredients:** Permethrin - **Brand:** Karlsten - **Item form:** Spray - **Item weight:** 0.2 Kilograms - **Liquid volume:** 500 Millilitres ## Images ![Karlsten Bug & Insect Destroyer: Flea Killer Spray - Image 1](https://m.media-amazon.com/images/I/51puUJ4scQL.jpg) ![Karlsten Bug & Insect Destroyer: Flea Killer Spray - Image 2](https://m.media-amazon.com/images/I/61HZPOJEQML.jpg) ![Karlsten Bug & Insect Destroyer: Flea Killer Spray - Image 3](https://m.media-amazon.com/images/I/61hlFAR1HJL.jpg) ![Karlsten Bug & Insect Destroyer: Flea Killer Spray - Image 4](https://m.media-amazon.com/images/I/61J5OxpNhUL.jpg) ![Karlsten Bug & Insect Destroyer: Flea Killer Spray - Image 5](https://m.media-amazon.com/images/I/611ZPKZBG3L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Sprayer ceased to work** A: If you look at the reviews, "failure to spray" has a frequent walk-on part. Presumably it is just badly designed or built. I overcame the problem by cannibalising the squirting mechanism from an almost empty spray of similar design and fit. Of course, that works so that you can use the contents but doesn't address the design. I was going to complain until I realised what a common fault it was with the product and concluded that it was no use knocking if there's no-one in! Best wishes Fontes **Q: Can it be sprayed on leylandi** A: 0To kill spiders on the trees? or to kill the trees?- I think it only does spiders. ( Elsan, camping toilet bleach on the roots, will kill leylandi) **Q: i sprayed this around the flat very generously, do you think if there was any spiders around they would have come out to run for their lives?** A: It deff kills spiders , if you spray them directly. Not sure how long it lasts as a deterrent. **Q: Is it safe to use the moth killer in your bedroom?** A: Save to use anywhere. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well *by R***G on 19 March 2026* Bought this few times now, very helpful to cope with the fear ### ⭐⭐⭐⭐ After a lot of research... *by M***. on 18 March 2025* After extensive research on bed bug treatments, I can confidently say that the effectiveness of any product depends on your preparation. Simply spraying a little on your mattress won’t cut it—you need to remove all clothes from cupboards, spray inside them, treat cracks in the floor, the entire mattress, and all parts of the bed frame. However, the bugs can be hiding anywhere and are attracted to the carbon dioxide, so just because you don't see them, doesn't mean they are gone. The pests can hibernate for 6 months without food so it is a pain. This Bed Bug Spray does kill on contact and provides some lasting protection, but if you have a heavy infestation, one bottle won’t be enough. In my case, I had a smaller bedroom with a single bed that was heavily infested, and even with professional-grade treatments like Provecta, C40 WP, and Cimetrol RFU, it still took several applications over multiple visits to fully resolve the issue. While this is a good starting point for minor infestations or preventative treatment, you’ll need several bottles for anything more serious. By the time you buy multiple bottles, you might be better off investing in professional treatment. That’s the main reason I’m giving this 4 stars instead of 5—it works, but it’s pricey for the amount you’ll likely need. Overall, a good product, but be prepared to invest in multiple applications for best results. I also contacted the helpdesk to confirm I could spray this on the mattress and they confirmed, their customer support was very responsive and helpful. ### ⭐⭐⭐⭐⭐ It shifts giant house spiders eventually *by S***Y on 28 September 2023* It doesn’t kill giant spider’s immediately but it will eventually. It makes them uncomfortable enough to move so you can catch them and put them outside. Have sprayed under floor vents and potential entrances from outside. Have reduced giant spiders to nothing within 10 days. Before using this spray I had maybe four giant spiders in the house scurrying across the living room floor and kitchen ceiling each night. After spraying entrance zones inc doorways, wall vents and room corners, after a few days the spiders disappeared. I think for large spiders this spray is a huge deterrent rather than something that kills them. I personally do not like killing spiders and before this spray, I tried to remove each spider but this wasn’t effective. Highly recommend spray. Allow a few days for results. ## Frequently Bought Together - Karlsten Flea Killer Spray - Fast Acting Elimination of irritating Fleas | Pest Control kills on Contact | Formulated for Use On Fleas Indoor and Outdoor Flea Spray Killer - 500ML - Johnsons 4Fleas Tablets for Cats and Kittens, 6 Treatment Pack, 14D083 - Johnsons Vet 4 Fleas Room Fogger Spray Twin Pack 100 ml, 2 count (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ni/products/52802688-karlsten-bug-and-insect-destroyer-flea-killer-spray](https://www.desertcart.ni/products/52802688-karlsten-bug-and-insect-destroyer-flea-killer-spray) --- *Product available on Desertcart Nicaragua* *Store origin: NI* *Last updated: 2026-04-23*