4,8,16 or 32oz Amber Boston Round Bottles w/ Black Phenolic PolyCone Lined Cap PolyCone Lined Phenolic Caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding and backing off. Choose from the following sizes: Capacity: 4 oz./120mL Capacity: 8 oz./240mL Capacity: 16 oz./480mL Capacity: 32 oz./950mL Great for storage packaging Excellent for field samples Ensures product integrity Suitable for long term storage Vacuumed ionized Attached Cap: Black Phenolic PolyCone Lined Cap Choose size, then choose quantity of bottles. Thank you.