1 / 7Karlsten 7000 Wasp & Nest Killer Aerosol, 300ml
Karlsten 7000 Wasp & Nest Killer is a 300ml aerosol marketed for wasps, hornets and exposed nests. Its listed 200-gram weight and ingredient details help identify the can, while customer feedback indicates that spray reach may matter for nests in awkward positions.
At a glance
- An aerosol spray rather than a foam, according to the listing.
- Marketed for fast knockdown on contact and treatment of exposed wasp and hornet nests.
- The listing claims indoor and outdoor use when following label instructions.
Reference price: £12.99
Price checked: 12 Nov 2026
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Pros and cons
Pros
- A single 300ml aerosol format is specified, with the active ingredients listed.
- The stated uses include both wasps and hornets and exposed nests.
Technical specifications
9 specifications| Brand | Karlsten |
|---|---|
| Model | 7000 |
| Product type | wasp & nest killer |
| Form | Aerosol |
|---|---|
| Liquid volume | 300 Millilitres |
| Active ingredients | Tetramethrin 0.24% w/w and Permethrin 0.25% |
| Weight listed | 200 Grams |
|---|
| Target species | Wasp |
|---|---|
| Specification met | HSE GB 10517 |
What to know before buying
- The manufacturer claims indoor and outdoor use only when used according to the label. Customer feedback reports mixed spray-distance experiences, including difficulty reaching nests beneath roof tiles, so it may be less suited to inaccessible nest locations.
Who is it for?
A good fit for
- People treating visible wasps or exposed nests in accessible areas.
- Buyers looking for an aerosol marketed for indoor and outdoor use subject to label instructions.
Less suited to
- People who need a confirmed long-range spray to reach nests beneath roof tiles or other inaccessible spots.
Customer reviews on Amazon
- 5 stars
63% 63% - 4 stars
19% 19% - 3 stars
10% 10% - 2 stars
3% 3% - 1 star
5% 5%
Customer feedback highlights perceived effectiveness and ease of use, with some reporting that wasps were eliminated after repeated applications. Views on value are mixed, and spray distance is also a concern for some, including difficulty reaching under roof tiles. That limitation is relevant because the listing gives no range figure and describes treatment of exposed nests. Aggregate ratings are generally favourable but do not establish how well the spray reaches a particular nest location.
Positive themes
- Customers describe the product as effective and easy to use.
Mixed feedback
- Feedback is divided on value for money.
- Feedback on spray distance is mixed, with some customers describing it as short and unsuitable for nests beneath roof tiles.
Frequently asked questions
Is this product a foam?
No. The listing describes it as an aerosol spray and explicitly says it is not a foam.
What volume and ingredients are listed?
The listed liquid volume is 300 Millilitres. The stated active ingredients are Tetramethrin 0.24% w/w and Permethrin 0.25%.
Can it be used indoors and outdoors?
The listing claims both uses when the product is used according to its label instructions.
Is it suitable for nests under roof tiles?
Customer feedback is mixed on spray distance, with some reporting difficulty reaching beneath roof tiles. The listing does not specify a spray range.
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