Our parent company, Omni Manufacturing Pty Ltd, is the Australian agent for the Garantia range of products owned by Otto Graf Gmbh, the pre-eminent European water tank manufacturer. Their range includes underground tanks for rainwater harvesting & grey water applications incorporating German engineered design and the most sophisticated filtration and supply systems available, all compliant with European standards.

Products include the Columbus 6500lt, Rondus 3000lt and Herkules 1600lt options.

Click here to view products in the Garantia range.