Description Packaging 1 L in steel cylinder 1 L quantity is packaged in a 450 mL carbon steel lecture bottle with brass CGA 110/180 valve. Nominal gas pressure at 21ºC is 20 psig for 1 L. This pressure is slightly above atmospheric pressure. Care must be taken when extracting this product from the cylinder. This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service. Other Notes We are in the process of phasing-out the CGA 110/170 valves in favor of CGA 110/180 valves. Some stock of cylinders with CGA 110/170 valves may still exist. Please use adapters Z147095-1EA (brass) or Z147125-1EA (stainless steel) to utilize with a CGA 180 regulator. Recommended products Stainless steel control valves Z146951 or Z187224 PTFE sealing washers GCA inlet size 180 Z146994 PTFE sealing washers CGA inlet size 110 Z146986