GARANTIA® Dark Grey Slim Stone Wall Tank 300 litres (inc tap)

(4 customer reviews)

£189.99 inc VAT

FREE Delivery by Thursday, 18 August, 2022.

The 300L Slim Stone wall water tank is a stylish feature for your garden. It allows for high capacity water storage despite only needing a small space in your garden. This tank comes with a plastic tap.

Length: 370mm - Width: 580mm - Height: 1820mm
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This item: GARANTIA® Dark Grey Slim Stone Wall Tank 300 litres (inc tap)
£189.99 inc VAT
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Choose high-capacity water storage with a smaller footprint, courtesy of this stylish tank from our 4rain range.

Delivery Requirements – Please read before ordering!

This item will be delivered on a pallet with one of our haulage companies.  The vehicles used to deliver palletised items are typically larger than standard courier vehicles.  If your delivery address would be unsuitable for a vehicle larger than a standard courier van, please kindly state this in the delivery instructions, and a member of our team will contact you to make appropriate arrangements.  If you will not be in to receive the delivery when it arrives, please ensure that you denote a safe place for the item to be left, as we will be unable to complete the delivery in your absence unless specific instructions are provided.

Free Delivery

  • Delivery lead time is 5-7 working days on all orders.
  • Price is included to mainland UK, quotations for highlands and islands available on request.
  • We use a number of different hauliers and also deliver on our own vehicles.  We try to provide a tracking number for all orders but can accept customer enquiries by phone and email if you don’t receive a tracking number.
  • Decorative water butt orders will be palletised curbside deliveries.  The customer being home to accept the delivery is advised but not essential.


You have 30 calendar days to return an item from the date you received it. To be eligible for a return:

  • Your item must be unused and in the same condition that you received it.
  • Your item must be in the original packaging.
  • Your item needs to have a receipt or proof of purchase.


Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you of the status of your refund after inspecting the item. If your return is approved, we will initiate a refund to your credit card (or original method of

You will receive the credit within a certain amount of days, depending on your card issuer’s policies.

Additional information

Weight 17 kg
Dimensions Length 370 mm x Width 580 mm x Height 1820 mm

4 reviews for GARANTIA® Dark Grey Slim Stone Wall Tank 300 litres (inc tap)

  1. Jude

    Brilliant, the speed of which the water comes out is amazing, it looks really elegant (for a water butt). So easy to assemble and the thinner design will fit in so many places. I might even get another one for the back garden.

    • Garden Tech

      Thanks so much for the kind words 🙂 If you do order another water butt, we’ve set up a 5% off coupon code for use with your email address only. Just use “jude5off” as the coupon code when checking out.

      Best wishes,

      Garden Tech

  2. Julie

    Very pleased with these water butts (bought 2). Really good flow rate so very quickly fills up watering can. Just need rain now

    • Garden Tech

      Thanks for the kind words Julie. We hope you enjoy your garden this year!

  3. Debra Fox

    I am loving my new water butt. Can I just say I am over the moon with our new water butt which I bought for my garden. It fits perfectly in the space I hoped it would. Great service and over all very happy! Best wishes Debra

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Can my water butt be attached to a wall?

Most water butts also known as water tanks are stable structures. Any water butts that, due to their particular shape, could fall down, we supply wall mounting brackets for added stability.

How do I prepare my water butt for winter?

Water butts can freeze if not drained for the winter, depending on their location and local weather conditions. If water freezes in your receptacle, the water butt may crack or deform under the pressure.

Do the water butts need added filtration devices?

All of Garden Tech’s water harvesting products are already equipped with a filtration device. Collected rainwater should only be used for gardening purposes and should not require any extra filtration.

How do the downpipe filters work?

When collecting rainwater, a downpipe will collect water from the roof via a drainpipe connected to your water butt. The downpipe filter works by combining a steel or plastic grid with the walls of the downpipe, to allow heavier bodies to fall through the centre of the pipe.

Can multiple water tanks be joined together?

Our range of water butts can be easily joined together if needed. This can be done with a simple connection kit that contains a small hose, a drill bit, and the fittings needed to connect the water butts together.

Shouldn’t the tap be at the bottom of the water butts?

No. This clever design feature ensures that the water butt always contains enough water to maintain its stability and avoid it getting blown over by the wind.

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