This Mainline Angle Quarter Turn Stop Valve with Oval Handle is the perfect solution for your plumbing needs. The valve is designed with a 1/2" FIP x 3/8" size and a manual operation. It is compatible with a variety of applications, including industrial and commercial settings. The brand is well-known for its high-quality products, making this valve a reliable choice for your plumbing projects. The end A diameter is 1/2" and the end B diameter is 3/8", providing a perfect fit for your plumbing system. The manufacturer part number is MLQTR17CX. Whether you're a professional plumber or a DIY enthusiast, this valve is easy to install and use.