

🕷️ Defend your space fast & long — because spiders don’t wait!
Karlsten Spider Killer 5 Litre is a professional-grade, HSE-approved spider control solution that kills spiders on contact within 60-120 seconds and creates an odorless, protective barrier lasting up to 6 weeks. Ideal for both indoor and outdoor use, its large 5L volume offers economical coverage for homes, offices, and commercial spaces, delivering fast, effective, and long-lasting spider elimination.










| ASIN | B093C1MMJM |
| Active Ingredients | cypermethrin |
| Active ingredients | cypermethrin |
| Best Sellers Rank | 16,263 in Garden ( See Top 100 in Garden ) 199 in Indoor Multi-Insect Control |
| Brand | Karlsten |
| Brand Name | Karlsten |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.4 out of 5 stars 479 Reviews |
| Item Form | Spray |
| Item form | Spray |
| Liquid Volume | 5000 Millilitres |
| Liquid volume | 5000 Millilitres |
| Manufacturer | lodi uk limited |
| Specification Met | HSE 10668 |
| Specification met | HSE 10668 |
| Target Species | Spider |
| Target species | Spider |
| Unit Count | 5000.0 millilitre |
K**.
It gets rid of spiders
It certainly works Yessss Personally think its easy to use
C**W
I’m terribly Spider Phobic and This Does Work, Slowly, But WORKS….
…..I’m so terrified of spiders. I use all sorts of everything to try and prevent them, and, I’m so sorry, to also permanently stop them in their tracks. Approximately every 4 weeks, I spray my homemade peppermint oil spray all over my soft furniture, including cushions, and I wipe it around all windows and doors. I place peppermint soaked cotton wool balls in drawers and cupboards. I have done this for years. It is time consuming etc, but well worth it. Peppermint doesn’t stop them permanently though, once a spider (or spiders) are in, they are blinking well, in. This is when this spray then plays its part. Again, every 3 to four weeks, I spray this spray all around my skirting boards / edges of my rooms, all over my home. Hoovering first, and then leaving any hoovering for at least 3 days, after spraying. I spray it using a 5L garden sprayer container - makes the job so much easier and quicker than a handheld spray bottle. My local area also experiences silverfish often. I am not at all scared of silverfish, however they are not nice to have in your home, even though harmless. I find this spray works on both spiders and silverfish. My evidence for that is that I find expired spiders and silverfish around my home occasionally - usually near the skirting board. Whenever I come across a live spider or silverfish - which thankfully isn’t often - they are extremely slow, really slow, strolling (not running at all) across wherever it is they are. It is clear to me on these occasions that they have walked across this spray and are slowly expiring (I’m so sorry) as a result. I also use those electric fly swatter rackets things (1 in every room, including my car) and use this on any live spider or silverfish that I do come across. This method is instant, I find the rackets work better on spiders than they do on flies lol. I have been using this spray for around 4 or so years now. I always have a container of it at the ready I can genuinely and thoroughly recommend it.
U**Y
Great
Does what it needs to keeps that out for good 2 weeks. Is very very strong. You dont wanna breath in the same room for about 4 to 6 hours minimum. Great value for money as it does get rid of creepy crawlers. Does not however kills rats (yes i tried).
F**E
Very Pleasantly Surprised
I was very sceptical about this product. I would have been out in the garden daily brushing away spider webs off the gazebo etc literally a new web would be in the same place the very next day, and having tried a couple of other things after a little googling and not working I thought I'd give something like this a try. I read the reviews which are generally positive and I figured worth a try, you'll never please everyone. I wouldn't say I was tormented by the webs just more of an irritation and very conscious of them if have friends or family around. First time treating I used a garden sprayer but was going through the contents too quickly so switched to pouring some into a spray bottle and narrowing the target areas. Been a couple of weeks since I got the product and I'm amazed at how well it works. If it continues keeping them away this is will an annual purchase for that peace of mind. I've already recommended it to people.
L**L
Very effective
73 huge false widows (and way more babies) I had in my garden and never knew as they only came out at night 🤮 all over the kids play kitchen and climbing frame too so they had to go! This stuff was AMAZING, put it in my own pump action spray tank and killed every one of them in a couple of minutes 🫶🏼 Haven’t had any back since either as I used it to spray around every window and door and all down the fence panels and side of shed!
J**S
Does the job
This is my go to anti spider spray.use in my garage and sheds. Effective and fast acting.
A**0
Difficult to know if working...
We used this during spider season, it was difficult to know if was actually doing anything. You do not need to dilute it and can be used as it is but this means you get through the produce quite quickly. You will need to wear a mask when putting on and decant into a spray like bottle. One application is unlikely to be enough, I think you will have to be persistent with something like this to see a true difference.
S**3
Video evidence it's working
As you can see in the video . I was following that big hairy @$$ spider and because i was panicking i might lose it and my daughter get heart attack i just keep spray on it . It took about 2 or 3 minutes to stop moving finally but it killed the little one quicker. In other hand amount i spray on that spider could kill elephant 🐘 🤣🤣😜. I think probably one spray would have been enough and would take same time as that many. So now at least we know it works there is ni smell and i just put it in empty glass cleaner bottle after i washed it probably and let it dry. So far like a good quality because im sure you guys know must this spider repellent or killer don't work. Value for money and easy to spray so gar very happy with performance lets see how long stay active on the floor. Update : it moved around 1 meter before almost stop moving in the picture
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