This 5 gallon (19L) LLDPE (linear low-density polyethylene) 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 (linear low-density polyethylene) tank and PP spigot with two Teflon® O-rings. Capacity: 5 gallons (19L). Graduations: every 0.5 gallons (2L). Dimensions (O.D. x D): 11 inch x 15 inch (28cm x 38cm). Wall thickness: 3/16 inch (4.7mm). 1/Case. Nalgene® #: 11102-0005.