Justrite 12923 HDPE Carboy, 40L, 120mm Cap, Amber, Made of highly durable Class VI, FDA grade high-density polyethylene amber resin, these carboys offer excellent chemical resistance and are ideal for various solvents, buffers, reagents, powders, and solids. The ergonomic design features large handles and base with molded hand-grip, allowing you to easily lift and pour. The included polypropylene cap with platinum-cured silicone gasket provides a tight spill-proof seal. Carboys are compatible with interchangeable caps and adapters.