The CGA-200 to CGA-520 cylinder adaptor from Western Enterprises is designed to facilitate the connection between different gas cylinders, ensuring compatibility and safety in various applications. This durable adaptor is essential for those needing to transition between cylinder types, enhancing versatility in gas handling. However, it is important to note that this product may expose users to lead, which is recognized by the State of California as a potential cause of birth defects or reproductive harm. For further details, please visit www.P65Warnings.ca.gov.