Sagar Rock Triple Layer Tank is known for its durability and toughness. This vertical water storage tank is made of food-grade polyethylene, which makes it one of the most dependable water storage tanks. To increase the toughness of the tanks, the company offers triple-layer protection with an inside white layer, intermediate black layer and the outside color is available in a wide variety to suit your preferences. The Outer layer is Ultraviolet (UV) stabilized to mitigate harmful effects of sun rays and the inner white layer makes it the safest for potable drinking water. These water storage tanks are round in shape to sustain natural weather conditions.