Motion Pro is dedicated to producing the most versatile, unique and durable products for professional and home use. Motion Pro tools are designed to be simple to use, yet durable enough to withstand the harshest conditions. One of their goals is to offer tools of convenience. Do it right the first time with Motion Pro Tools. Dual shut-off valves. When connected, fuel will flow, and when disconnected, fuel will not flow. Use dual shut-off for fuel tanks equipped with a cross-over line. Available for 1/4" and 5/16" ID fuel line. Capable of withstanding temperatures of -40 degrees F to 180 degrees F. These fittings now come with Viton® type fluoro elastomer O-rings with superior chemical resistance. Made in the U.S.A.