The Millstone Cosmo Mini 150L Water Butt Planter is a stylish and space-efficient rainwater harvesting solution designed for modern gardens, patios, and outdoor living areas. Featuring a natural millstone stone-effect finish, this decorative water butt blends seamlessly into garden surroundings while providing a practical way to collect and store rainwater for everyday garden use.

  • Dual-Purpose Design: Combines a 150-litre rainwater tank with an integrated planter top, allowing you to grow flowers, herbs, or seasonal plants while storing water below.
  • Compact Footprint: The space-saving shape is ideal for smaller gardens, courtyards, patios, and balconies, offering an attractive alternative to traditional bulky water butts.
  • Durable Construction: Manufactured from high-quality MDPE (Medium Density Polyethylene) using a rotational moulding process for long-term outdoor durability.
  • Weather Resistant: The robust material is frost-resistant and UV-stable, helping maintain its shape and colour while protecting stored water from algae-promoting sunlight.
  • Convenient Outlets: Features a raised ½" BSP brass outlet tap for easy filling of watering cans, plus additional outlets for drainage or linking multiple tanks.
  • Complete Kit: Supplied with a brass tap, PTFE tape, downpipe diverter, grommet, 32mm drill bit, and a bottom shut-off valve for straightforward installation.

The Millstone Cosmo Mini Water Butt Planter is the perfect combination of decorative garden design and practical rainwater harvesting, helping you save water while adding a stylish planting feature to your outdoor space.

Capacity 150 Litres
Height 940 mm
Length 570 mm
Width 415 mm
Weight Approx. 8 kg
Outlets ½" BSP threaded connections
Material MDPE (Medium Density Polyethylene)

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Total price£1,165.00

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