Rainwater tanks
Why watch thousands of litres of precious rainwater run down the drain when ZEN can make rainwater storage so simple? With a range of tank sizes, capacities, colours and configurations, you can easily select the ideal ZEN system to suit your home and your lifestyle.
Installing a ZEN rainwater tank and harvesting the rainwater that falls on your roof will ensure your on-going water supply in times of water restrictions or water shortages.
10mm of rain falling on 10m2 of your roof area will provide 100 litres of rainwater in your tank. For example, an average sized suburban roof is 200m2. If the area you live in receives 500mm of rain each year, you could harvest around 100,000 litres of rain water in your ZEN tank. This would be approximately 50% of an average 4 person home’s water consumption in any given year. To view our full range of models and sizes see below.
ZEN Suburban, Urban, Slimline and Round Corrugated tanks can also come equipped with the Grundfos PM Rainwater Management System to intelligently manage your water resources.
Suburban tanks

| Dimensions (HxD) | Tank size |
| 1530mm x 670mm | 500 litre |
| 2100mm x 670mm | 700 litre |
| 2100mm x 1050mm | 1050 litre |
| Dimensions (HxD) | Tank size |
| 1990mm x 900mm | 1000 litre |
| 2040mm x 1400mm | 2500 litre |
| 2170mm x 1800mm | 5000 litre |
| 2320mm x 1800mm | 5400 litre |
Urban tanks

| Dimensions (HxD) | Tank size |
| 1655mm x 2025mm | 450 litre |
| 1800mm x 1380mm | 1,100 litre |
| 1720mm x 2460mm | 2,300 litre |
| 2020mm x 2570mm | 3,000 litre |
| 2100mm x 3300mm | 5,000 litre |
Round tanks

| Dimensions (HxD) | Tank size |
| 2400mm x 2580mm | 10,000 litre |
| 2450mm x 3000mm | 14,000 litre |
| 2500mm x 3700mm | 22,500 litre |
Slimline tanks

| Dimensions (HxD) | Tank size |
| 1850mm x 2400mm | 1,000 litre |
| 1850mm x 2400mm | 2,000 litre |





