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Harcostar 700 litre Magnum Water Butt Double Kit

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Double your water storage capacity by connecting these two Harcostar Magnum 350 Litre Water Butts to save even more water!

Fitted with spring-operated, child-safe lids, the kit includes two water butts and taps, a Harcostar Universal Rain Trap to connect to almost any size of plastic downpipe, and a Harcostar Long Linking Kit to connect the two water butts together.

Made in the UK with a five-year guarantee, this kit is supplied pre-drilled with easy-to-follow instructions, meaning fitting your Harcostar 700 Litre Magnum Water Butt Double Kit couldn't be more simple.

The Harcostar Universal Rain Trap fits standard 68mm, 80mm and 100mm round plastic downpipes and 65mm square plastic 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.


Harcostar Magnum Water Butt specification
ModelCapacity (l)Height (mm)Diameter (mm)
Harcostar 700 Litre Magnum Water Butt Double Kit700 1200780
Harcostar Diverter fitting instructions
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incl. VAT