Open Top Cone Bottom Tanks are designed for stationary applications and are selected when a more complete drain-out of stored liquid is required; other applications include: 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. Tanks are manufactured from high-density Polyethylene with U.V. inhibitors. Tank walls are translucent for level viewing and equipped with gallon and/or liter indicators. All tanks are designed for a removable crowned top, fastened to a flange around the top of the tank. Cone Bottom style requires the use of a stand for support. Stands and lids are sold separately.