Buyers 400 Gallon Hopper-Mounted Poly Tank Polyethylene Model 3026538Buyers 400 Gallon Hopper Mounted Poly Tank Polyethylene Model 3026538 Designed for heavy duty industrial and large scale agricultural operations, the 400 gallon hopper mounted tank is the most robust fluid containment option in the series. This high capacity unit is built from all virgin, medium density polyethylene to ensure the highest levels of material consistency and strength. It is engineered to hold massive volumes of non flammable liquids,