Dual Containment Fittings provide an extra level of safety in critical applications, transforming standard flare grip fittings to PFA over PFA dual containment. This ensures true dual containment throughout the chemical delivery system. The Dual Containment Fitting can mate up with chemical delivery systems, wet tools, valve boxes, individual components and drain lines. There are different types of dual containment fittings and they are available in three designs flare fittings, flare fitting rear deal bulkhead and flare fitting front seal bulkhead. The front seal version provides complete dual containment to the face of the bulkhead without requiring access to process tool internal components. The rear seal version is used primarily in applications requiring sealing on the internal surface of the containment area such as a process tool cabinet. It can also be used as a pass through device which will terminate the outer containment on the face of bulkhead while allowing the primary process line to pass through a bulkhead uninterrupted.