SPECIAL ORDER ITEM. Review Returns Policy before purchase. This is a straight coupling designed for oil and gas applications and thick wall steel pipe systems. The press connection technology ensures secure, leak resistant performance while reducing installation time and supporting a clean working environment. It provides reliable joining for gas piping systems in residential and commercial projects. The range includes DW profile press fittings and valves in sizes 1/2 in up to and including 2 in for efficient and professional installation.