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Best 100 litre water butt: start with the job, then the reviews

Updated: 22 October 2026

A 4.6 from 23 amazon.co.uk reviews can sit above a 4.5 from 2,120 and look like the best 100 litre water butt on the page. The sample is what differs. This page names a starting point for a stated job. The [100 litre water butt comparison](/hub/garden-watering/100-litre-water-butt) is the full table, priced from £29.99 to £49.88 on 19 October 2026. Peter F. used those listings plus notes from the RHS and RoSPA. There is no lab score. Best here means a stated job plus enough reviews to see the faults. A qualifying purchase can earn us a commission at no extra cost to you.

A 4.6 from 23 amazon.co.uk reviews can sit above a 4.5 from 2,120 and look like the best 100 litre water butt on the page. The sample is what differs. This page names a starting point for a stated job.

Our top picks

Bowers Bargains Bowers Bargains (100l-slim-wb)

Best overall

Bowers Bargains Bowers Bargains (100l-slim-wb)
7.5/10about £39.99
View offer
Plant!T Plant!T (GN334)

Rank 2

Plant!T Plant!T (GN334)
8.9/10about £33.89
View offer
Vision4ever Vision4ever (VD-775)

Alternative

Vision4ever Vision4ever (VD-775)
3.2/10about £29.99
View offer
On this page
  1. 1.What best can mean in this set
  2. 2.Most-reviewed slimline
  3. 3.Kit titles and thin evidence
  4. 4.Who should not start here

What best can mean in this set

Best, on this page, is the listing you open first for a job you can describe. A permanent slimline beside a downpipe is a different job from a tank you must fold away in November, and both differ from a flexi bag sold for hydroponics. Review count tells you whether the star column has been argued over. A handful of ratings, or none, does not outrank a product thousands of UK buyers have already marked. The shelf runs from the Vision4ever title at £29.99, with no review line, to the GJGSW collapsible at £49.88, with three reviews. If you still need the checks on pipe size and lid, use the buying guide before you order.

Most-reviewed slimline

Start with the Plant!T GN334, B0083GAK8K, if you want a rigid green slimline and you accept that the parcel is the butt. It is £33.89, rated 4.5 from 2,120 reviews. The included-components line is the butt only. A stand and a downpipe diverter are extra. Strata sells a 100 litre set with stand, locking lid, tap and a diverter for 68 mm round or 65 mm square plastic pipe. This listing is the tank those parts attach to. Many people say the tap fits and stays dry. A recurring minority report a leak at the spigot, a hole drilled off-centre, or a thread that sealed only with PTFE tape. One buyer says it tipped forwards at about three-quarters full. The catalogue size of 10 × 10 × 10 mm is not a footprint. Ignore it. This is the top pick for a permanent butt when you will buy the stand and diverter yourself, because the sample shows both the fit and the leaks. It is a poor start if you need every part in one box.
Bowers Bargains Bowers Bargains (100l-slim-wb)

Testsieger

Bowers Bargains Bowers Bargains (100l-slim-wb)
7.5/10about £39.99
View offer

Kit titles and thin evidence

Open Bowers Bargains, B0GTB69SJY, if you want one parcel that claims the stand and the downpipe kit, and you will check the contents before you fit anything. It is £39.99, black, 36 × 32 × 96 cm, rated 4.6 from 23 reviews. It is the best value in this set only if the stand and diverter arrive. One verified review says the box was the butt and a tap, with no stand. Twenty-three reviews cannot retire that report. Vision4ever, B09JZR3LKT, is £29.99, with hose, tap and stand in the name and a size of 41 × 92 × 41 cm. There is no review line. Do not let the price stand in for 2,120 reviews. The GJGSW collapsible, B0FX9G6PM8, is £49.88, rated 4.0 from 3 reviews. Start here only if you must fold the tank flat. Shape sits on the slimline or collapsible water butt page. The Plant!T Flexi Tank, B079GX8DMX, is hydroponics storage. Skip it for a gutter.

Who should not start here

Do not start here for a lawn, a sprinkler, or a large kitchen garden through a dry month. One hundred litres is a can supply. A 200 litre class butt, or two linked tanks, is the next step when the roof collects more than one butt holds. Do not start here if the only downpipe is cast iron, or if you want mains water piped into the tank. A mains top-up needs an air gap under the water fittings rules. A diverter on 68 mm or 65 mm plastic is the ordinary garden case. Do not read a butt as a way around a hosepipe ban. Rain already in the tank is not the company's mains. The water butt hosepipe ban page covers refilling from a mains hose in England or Wales. Capacity does not change the test.

Common questions

Which 100 litre butt has the most UK reviews?
The Plant!T GN334, at 4.5 from 2,120 reviews in this file. Bowers Bargains is next, at 23. The others sit at five, three, or no review line. For a rigid butt you will leave in place, the GN334 is where tap leaks and the missing stand are already visible.
Is the highest star rating the one to buy?
Not by itself. Bowers is 4.6 and the GN334 is 4.5, a tenth of a star on 23 reviews against 2,120. Use the higher stars as a prompt to read the kit claim. A listing with no stars, such as Vision4ever here, is unevidenced, not average.
Which listing is only the tank?
The GN334 included-components line is the butt. Reviewers buy a stand and a pipe fitting afterwards. The flexi tank is also not a gutter kit. Its title is fold-up hydroponics storage, with no stand or diverter in the parts list.
Which titles claim a stand?
Bowers claims a stand and a downpipe kit, and one verified review says they were not in the box. Vision4ever claims a hose, tap and stand, with no reviews to support or contradict it. The GN334 does not claim a stand. Confirm the parcel before you cut pipe.
Is the collapsible better because it costs more?
No. The GJGSW is the dearest here at £49.88 and has three reviews. The money buys a fold-flat PVC shape, not a larger evidence base. Choose it when storage is the constraint. Choose the GN334 when the tank can stay against the wall.

Related pages

How to install a water butt

100 litre water butt

100 litre water butt: what to check before you buy

Water butt hosepipe ban: stored rain versus the mains

Slimline or collapsible water butt: the 100 litre choice

Sources

Public UK sources used for hosepipe bans, child safety, non-potable rainwater and garden practice. Listing prices, stars and review counts are the amazon.co.uk lines saved on 19 October 2026. This is not a lab test.

  1. Water Industry Act 1991, section 76 (retrieved 19.10.2026)
  2. The Water Use (Temporary Bans) Order 2010 (retrieved 19.10.2026)
  3. Ofwat — hosepipe bans (retrieved 19.10.2026)
  4. Thames Water — hosepipe ban FAQs (retrieved 19.10.2026)
  5. RoSPA — garden safety (retrieved 19.10.2026)
  6. BS EN 16941-1:2024 scope (retrieved 19.10.2026)
  7. Environment Agency / Waterwise rainwater guide (retrieved 19.10.2026)
  8. RHS — collecting and storing water (retrieved 19.10.2026)