This 7.5 gallon (28L) LLDPE cylindrical heavy duty tank is non-sterile and not autoclavable. Graduated in both gallons and liters the tank is rigid with a hard surface and good temperature resistance. It meets USP Class VI requirements and complies with 21CFR177.1520. It is supplied with a floating cover and a factory-installed needle-type polypropylene spigot with two Teflon O-rings for draw off using 5/8 inch (1.3cm) I.D. tubing. CAUTION! Plastic tanks are generally subject to more severe conditions than plastic labware; exposure is constant stresses are greater and different classes and concentrations of chemicals are involved. Please pay special attention to chemical compatibility. Material: LLDPE tank and PP spigot with two Teflon O-rings. Capacity: 7.5 gallons (28L). Graduations: every 0.5 gallons (2L). Dimensions (O.D. x D): 12 inch x 18 inch (30cm x 46cm). Wall thickness: 3/16 inch (4.7mm). Sold individually. Nalgene #: 11102-0007.