Rank #4 in Best Water Butt 2026: £0.24 to £0.71 a Litre
STORM TRADING GROUP 100 Litre Slimline Water Butt Kit with Tap
Price and rating as shown on Amazon when we collected them. Both change.
The STORM TRADING 100-litre slimline is the most-reviewed butt in this ranking: 800 ratings at 4.5 stars for £33.50, which is £0.335 per litre.
It takes fourth because it is the best option where space decides: 32cm deep, it fits down the side of a house, and it costs about 19 per cent more per litre than the cheapest large barrel here.
How those 800 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Capacity | 100 litres |
|---|---|
| Depth | 32 cm |
| Price per litre | £0.335 |
| Included | Tap and downpipe filler |
| Ratings | 4.5 from 800 |
| Price | £33.50 |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Fab. Love it already, easy to put together and saving my water bills. Good quality and arrived in good time”
Verified purchase“Great buy! This water butt saves on tap water as I now water all my plants, etc with rain water.Also means I don't have to go in & out the house to fill my watering can.I've fixed mine on to the shed with a Rowan pipe. Works really well.”
What it is up against
The rivals it was ranked against in Best Water Butt 2026: £0.24 to £0.71 a Litre.
Rank #1
STORM TRADING GROUP 210 Litre Water Butt with Stand, Tap and Diverter
£58.99
Rank #2
Harcostar 227 Litre Water Butt Kit with Stand, Tap and Diverter, 5 Year Warranty
£69.99
Rank #3
Zinc Products 227 Litre Water Butt Kit, Green with Stand and Diverter
£69.99
Rank #5
Edena 100 Litre Slim Space Saver Water Butt with Tap
£33.89
Questions people ask
Why choose slimline?
Because 32cm of depth fits beside a wall or down a side return where a round barrel will not go.
How much more does it cost per litre?
£0.335 against £0.281 for the 210-litre barrel: about 19 per cent more for a third of the footprint.
How quickly does it fill?
About 5mm of rain on a 20-square-metre roof is 100 litres.
What is included?
A tap and a downpipe filler.
Why is it fourth?
Because space, not value, is its argument, and the larger butts are cheaper per litre.
How many ratings does it have?
800 at the time of collection, averaging 4.5 stars, with 69 per cent five-star and 3 per cent one-star.
Comments
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