Our line of Chemical and Liquid Storage Tanks are manufactured with a Specific Gravity of 1.5, 1.9 or 2.0. A 1.5 specific gravity means you can store liquid 1.5 times as dense as water. Our line of Plastic Storage Tanks are generally used for Bulk Liquid Fertilizer Storage, Farm & Agriculture Chemicals Storage, DEF (Diesel Exhaust Fluid), Industrial Chemical Storage, Reverse Osmosis Systems, Brine Storage, Soap Storage, Waste Vegetable Oil Storage & Non Potable Water Storage.