Nel vertical storage tanks are used for the storage of water, fluid fertilizer, chemicals, wine, milk and other suitable materials. Nel vertical storage tanks are manufactured with a specific gravity (SG) rating of 1, 1.5 or 1.7, depending on the weight of the material that needs to be stored. Water tanks, with a SG rating of 1, are produced in a variety of colours. Nel vertical chemical storage tanks, with an SG rating of 1.5 or 1.7, are produced in yellow or natural (opaque). NOT FOR UNDERGROUND OR TRANSPORT USE All Nel Tanks has to be installed on a solid and level base that supports the combined weight of the tank and its contents. 5500 litre vertical low profile water storage tank