The Airgas® SFE/SFC Cylinder, Connection Kit contains a 320 CGA-connector, manual relief valve and 10 feet of pre-cleaned, stainless steel tubing. The connector assembly is, constructed of Type 316L stainless steel with Type, 304 stainless steel tubing and is specifically cleaned, for supercritical applications. The manual relief valve, contains a unique diffuser/restrictor element for, controlled venting. This unit makes the connection, between the cylinder and instrument a simple procedure, requiring no Adapters or additional hardware.