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 1-piece moulded Columbus 6500lt and Rondus 3000lt as well as the budget 2-piece Herkules 1600lt option.

Click here to view products in the Garantia range.