Adding product...

Harcostar 1050 litre Magnum Water Butt Kit


Triple your water storage capacity by connecting these three water butts together.

Save even more water with this Harcostar Magnum 1050 litre Water Butt Kit.

This kit contains everything you need to connect one water butt to a downpipe, while linking your three butts to all fill from the same source.

The water butts are supplied pre-drilled and with our easy-to-follow instructions, fitting could not be simpler.

Kit includes:

  • 3 x Harcostar Magnum Water Butts with taps and lids
  • 1 x Universal Rain Trap
  • 2 x Long Linking Kits

The Rain Trap fits: round downpipes with diameters of 68mm, 80mm and 100mm and square 65mm downpipes. Not suitable for cast iron downpipes.

Optional accessories available here Optional Harcostar Fast Flow Tap available here

We cannot guarantee that the appearance and/or colour of Goods shown in our promotional literature or on our website exactly reproduce the appearance and/or colour of the physical Goods themselves.

When setting up your water butt, please ensure that the full unit is sited on a flat, solid surface with no overhang or unevenness.



  • 1050 litres of water saving capacity
  • Each water butt is pre-drilled and plugged in five places
  • Spring operated child-safe lid
  • Complete with tap
  • Made in the UK from recycled plastic
  • 5 year guarantee


Harcostar Magnum Water Butt specification
ModelCapacity (l)Height (mm)Diameter (mm)
Harcostar Magnum Water Butt Triple Kit350 x31200780
Harcostar Diverter fitting instructions
Out of stock Low stock In stock
incl. VAT
Reviews (5)
  • Just the job 5/10/2020
    Bought the triple set last year to catch water from the house roof. The butts are solidly constructed and discreet looking. I'm very pleased with this purchase
  • water meter savings 7/30/2019
    Great having water butts and saving on water consumption....but don't forget water companies use water consumption readings to bill you for waste water discharge costs.....so presume water butts offer a double cost saving..is that how its worked out?
  • Excellent Water Storage 7/27/2019
    Have bought 6 of these butts which save a fortune on water bill as on a meter. Good, strong product.
  • buying another one 4/29/2019
    Great large capacity water butt. I bought mine about 4 years ago and it's great for a medium sized garden. Buying another one now that our summers seam to be getting longer and dryer (climate change?)
  • Water Butts 10/2/2018
    This is the second set of these butts I have bought, I am very pleased with them having had no problems with first set, I bought the second set. They are good quality & value,having been made by Harcostar you would expect nothing less!!!