Multi- Purpose: specifically developed for rainwater harvesting for use as a retention, firefighting, treated water, or septic tank system.

Higher Capacity: available in sizes from 16,000L to 122,000L. Standard “off the shelf” sizes are available up to 52,000L, with customised options available to 122,000L – just contact us!

Lightweight: lighter than an equal tank made from concrete or steel.

Multiple Access Domes: available for varying configurations.

Lid Options: pedestrian, class B or D loading with grated options.

Ladders: access ladders available.

Warranty: GRAF Carat XXL tanks are supported by a 15-year manufacturers’ warranty.