Cone Bottom Tanks are selected when a more complete drain-out of stored liquid is required. Cone Bottom Tanks are very versatile plastic tanks and are used for a multiple of indoor and outdoor applications: water treatment, wine making, beer brewing, biodiesel / bio-fuels (WVO), liquid fertilizer, liquid feed, batch / mixing tanks, Slurry / Sludge (Settling Tanks), DEF Tanks (Diesel Exhaust Fluid), agricultural grains, and agricultural / industrial compatible chemicals. Cone Bottom Tanks are manufactured from Food Grade Polyethylene with U.V. inhibitors and designed for containment of liquids up to 1.7 specific gravity. Tank walls are translucent for level viewing and equipped with gallon indicators. Stands are sold separately.