Discover our full range of GRAF Platin underground storage tanks – engineered for large-capacity, low-profile water storage up to 25,000 litres.
Whether you’re managing rainwater harvesting, storing non-potable water for irrigation, or building a sustainable water reuse system, GRAF’s German-made Platin, Platin XL, and Platin XXL tanks offer a robust, space-saving underground solution.
Designed for shallow excavation and long-term durability, these flat tanks are ideal for residential, commercial, and agricultural applications — including installations in vehicular load areas such as driveways and courtyards.
With tank sizes ranging from 1,500 to 25,000 litres, the range supports everything from garden watering and toilet flushing to firewater reserves and greywater management.
Optional system packages include filter technology, pump kits, traffic-rated telescopic dome shafts, and pedestrian or vehicle-loadable covers — allowing you to customise each installation to your exact needs.
Browse the complete GRAF Platin collection and invest in a future-proof, underground water storage system built to perform in the toughest environments.