Winter check
These measures ensure that your rain tanks are ready for winter!

Monolithic rainwater tank Columbus with tank dome and PE-lid.


Columbus underground tank for pedestrian loading

  • Recommended for Rainwater Harvesting in the home and in the garden
  • Only one tank covering in the garden thanks to integrated filter technology
  • Pre-fitted lip seals for fast and safe assembly
  • Groundwater stable up to 80 cm (31.5") above the tank base
  • Columbus underground tank with a tank dome Ø of 60 cm (23.6") and 4 openings with DN 100 (4") seals
  • Including Columbus telescopic dome shaft which can be telescoped/ shortened between 22 cm (8.7") and 70 cm (27.6"), Ø of 60 cm (23.6") and child-proof PE cover with double walls, grass-green in colour

3,700 l

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4,500 l

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6,500 l

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9,000 l

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Kit consists of 2 Columbus 4,500 l underground tanks


  • Water Connector external


  • Filter package Supra for Columbus tank


  • Rondo water spring unit


  • Granite water spring lightgranite


  • Wood water spring


  • Stone fountains Roma


  • Stone fountains Venezia


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