The tanks are primarily intended for storing drinking water. Other permitted applications: storing rainwater, irrigation water, or food-grade liquids (oil, milk). The tanks are designed for above-ground installation, at atmospheric pressure, and fluid temperatures in the 4–45°C range. The delivery package includes: tank and lid. Material: The tanks and lid are made of UV-stabilized polyethylene, class 8. Coloring is done with (alpha)-stabilized organic pigments certified for food use, with good resistance to light, UV radiation, and temperature. Structure and color: single-layer, blue. The tank is manufactured with a 1″ connection at the bottom. – The tanks have not been designed and CANNOT be used for pressures below or above normal atmospheric pressure (they cannot be used for pressurized storage or under vacuum). – The tanks have not been designed and CANNOT be used for fuels or other petroleum products, nor for chemically aggressive substances (acids, bases, etc.).