Garantia Dark Grey Slim Stone Wall Tank 300 litres

(2 customer reviews)


FREE Delivery by Friday, 27 May, 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 brass plastic tap.

7 in stock (can be backordered)

This item: Garantia Dark Grey Slim Stone Wall Tank 300 litres

7 in stock (can be backordered)

1 × Garantia Rapido Diverter, Colour Grey

13 in stock (can be backordered)

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SKU: 211811


A member of our stylish 4rain range, this product allows for high-capacity water storage with a small footprint.

Product Dimensions:

  • Height – 1820mm
  • Width – 580mm
  • Depth – 370mm
  • Weight – 17kgs

2 reviews for Garantia Dark Grey Slim Stone Wall Tank 300 litres

  1. Denise Manning

    Looks great but disappointed in the plastic tap. When opened the water sprays everywhere, now looking for hose to fit

  2. Peter George

    Looks great did pay extra for the brass tap which I think just finishes it off was well packaged an print delivery highly recommend

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FREE Delivery Information

A note to our customers

All of our orders are typically delivered within 1 week from receipt of order, however during this time due to UK-wide disruption, deliveries may take a little longer and we aim to deliver within 10 days.

  • 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 cannot currently provide a tracking number for all orders but can accept customer enquiries by phone.
  • 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.
  • In order for returns to be approved and refunded, the returns form included in the delivery must be completed.  We can send out an additional or electronic copy of the returns form upon request.

3 Questions about Garantia Dark Grey Slim Stone Wall Tank 300 litres

  1. Approximately how much water is sitting below the level of the fitted tap please?


    1. Hi Jane,

      Approximately 85L of water is sitting below the level of the tap to act as weight to keep the water butt stable.

      Thanks, Garth


  2. I notice some of your water tanks need to be emptied in sub-zero temperatures. Why is that and does this 300l slim stone wall tank need to be emptied in freezing winter conditions too? Thank you Rich


    1. Good afternoon,

      It is common practice to empty your water butt as winter approaches to prevent the risk of ice forming, expanding, and then cracking or splitting the container.

      If you would prefer to avoid draining your water butt, another option is to insulate it to stop ice forming. Home remedies, such as bubble wrap can be very useful, or you can use gardening protection fleece. Insultation will aid in guarding you water butt from the harsh weather and prevent freezing.

      Another way to keep your water temperature higher is to elevate your water butt from the ground. This can be done by placing your water butt on a stand (available online) but do make sure it is empty when you move it as tanks can be heavy when filled with water.

      Hope this helps.



  3. Hi, can multiple tanks be connected together. I’m looking at positioning 3 unit side by side. Alternatively do you have a wider and larger capacity slim line tank with similar depth to this? Thanks Russell


    1. Hi Russell,

      Yes, 3 units can be connected using our Garantia Flex-Comfort Connection Set 1 1/4″, Grey.