The Stauff S142661 is a genuine Stauff Test Coupling designed for reliable pressure monitoring and diagnostic testing in hydraulic systems. Featuring a G1/4 female process connection and an M16x2 male test port, this high-quality coupling ensures quick and secure connection of Stauff Test 20 series measuring hoses and diagnostic equipment. Constructed from durable steel with zinc/nickel plating, it offers excellent corrosion resistance and is rated for a nominal pressure of 630 bar (9135 PSI), making it suitable for demanding industrial and mobile hydraulic applications. It typically uses an NBR seal for a temperature range of -30 °C to +100 °C.