Wasp nest killer foam and the disputed 4 metre jet
Updated: October 2026
You can see the nest, and the can in the search results promises a long jet. Wasp nest killer foam in this comparison means one product: Zero In Ultra Power 600 ml, model ZER556, £12.94 on the amazon.co.uk extract, 3.6 from 5,173 reviews. The title says up to 4 metres and 4 to 7 nests. This page is whether that foam can reach the nest you are looking at. The [wasp spray comparison](/hub/pest-control/wasp-spray) prices it next to four indoor aerosols that are the wrong tool. We did not measure a jet. A qualifying purchase can earn a commission at no extra cost to you.
You can see the nest, and the can in the search results promises a long jet.
You can see the nest, and the can in the search results promises a long jet. Wasp nest killer foam in this comparison means one product: Zero In Ultra Power 600 ml, model ZER556, £12.94 on the amazon.co.uk extract, 3.6 from 5,173 reviews. The title says up to 4 metres and 4 to 7 nests. This page is whether that foam can reach the nest you are looking at. The wasp spray comparison prices it next to four indoor aerosols that are the wrong tool. We did not measure a jet. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Form | Listed reach | Nest claim | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Raid Raid 6 × 300 ml | Aerosol spray | Not stated | None in the file | 8.9 | about £19.99 | View offer |
| Best value |  Sanmex Sanmex 3 × 300 ml | Aerosol spray | Not stated | None in the file | 7.2 | about £6.22 | View offer |
| Alternative |  Zero In Zero In Ultra Power 600 ml | Trigger foam aerosol | Up to 4 metres | 4 to 7 nests | 7.2 | about £12.94 | View offer |
On this page
What this can is for
This is a trigger foam for a nest you can see. The bullets say late in the evening, protective clothing, and wind direction outside. The model is ZER556, and the can weighs 565 g and holds 600 ml. You aim from a standing distance, coat the entrance, and leave.
A hedge nest you can see from the path, or a small nest on a shed wall below head height, is the picture the product is sold for. The evening order is how to use wasp nest foam. Pets are an open question. The bullets do not answer.
The 4 metre line and the reviews
The listing's reach is up to 4 metres, and the nest count is 4 to 7. The complaint cluster is a dribble, about 12 to 18 inches, about 2 metres, a grip that broke, and a can a buyer said was 15 months past its date.
Wickes copy has said up to 5 metres. A trade listing has said up to 2 metres. Averaging those numbers does not produce a true distance. Who should buy this foam, and who should buy an indoor Raid instead, is on best wasp spray UK.
Actives and the other Zero In can
The extract does not name an active ingredient and does not print an HSE number. A 2020 STV catalogue lists ZER556 as tetramethrin and permethrin. A later maker page has said 1R-trans-phenothrin in another place. Our table keeps 3.6 from 5,173 and no active, because that is the extract.
The 300 ml Zero In, often ZER904, is not in this comparison. A trade price around £4.99 to £5.52 including VAT in October 2026 was for that 300 ml size.
When foam is the wrong shape
Foam has to land on a nest you can see. A wall cavity or an air brick hides the colony. Spraying the brick coats the brick. Powder is the shape Rentokil describes for an entrance you cannot see, and this set does not sell powder. An underground nest has the same problem from below. The split between foam, a room aerosol, and a person is the wasp spray buying guide.
Common questions
How far does the 600 ml foam really spray?
The listing says up to 4 metres. Reviews on the same ASIN describe a long jet and, often, much less: a dribble, about 12 to 18 inches, or about 2 metres. None of those figures is a measurement we made. If it falls short of the nest, do not walk in to compensate.
Will one can do several nests?
The title says 4 to 7 nests. Reviewers regularly report a second can for a single nest, especially when the pressure is poor or the first coating missed. Treat 4 to 7 as the marketing line, not as a count you can bank on for a row of nests along a hedge.
What is the active ingredient?
The amazon.co.uk extract used for this comparison does not name one, and it does not show an HSE number. A 2020 STV catalogue says tetramethrin and permethrin for ZER556. Later seller wording has disagreed, including 1R-trans-phenothrin. Read the can. Until that label is in your hand, any percentage in a shop description is someone else's text.
Can I use it on a nest in a wall?
Only if you can see the nest and the foam can land on it. A hole, an air brick, or a crack is not a visible nest. The foam stops at the opening, and blocking that opening can send wasps into the house. That situation wants a powder product, which is not in this set, or a person. The 4 metre claim does not reach around a corner inside a cavity.
Why do some cans dribble?
Logged complaints point at pressure, a can past its date, and a jet that never matched the title. A broken grip shows up as well. A dribble is a reason to stop the treatment, not a reason to stand under the nest and keep squeezing the trigger.
Is 3.6 a reason to avoid it?
3.6 from 5,173 reviews is a real warning about the jet, not a reason to switch to a fly spray. The indoor cans score higher because buyers were killing flies, which is an easier and different job. If you need a nest foam and you can see the nest, this is still the only foam in the set. If you need a guaranteed 4 metre jet, this rating says you do not have that guarantee.
Indoor loft or outdoor hedge: same can?
The bullets say indoor and outdoor nests, with wind considered outdoors and clothing either way. A hedge nest you can see from the ground is the straightforward case. A loft adds escape, head height, and agitation in a closed space. Same can, harder job. If you cannot keep a path out, do not start. The listing's lack of a pet answer still applies in both places.
Related pages
Sources
Public UK sources and the amazon.co.uk listings in this set, last checked on 16 October 2026.
- HSE, COPR conditions (retrieved 16 October 2026)
- HSE, COPR product types (retrieved 16 October 2026)
- HSE, honey bees and biocides (retrieved 16 October 2026)
- NHS, insect bites and stings (retrieved 16 October 2026)
- NHS, anaphylaxis (retrieved 16 October 2026)
- BPCA, wasp control (retrieved 16 October 2026)
- Leeds City Council, pest control (retrieved 16 October 2026)
- NNSS, yellow-legged hornet update (retrieved 16 October 2026)