The XX0121141 Stop 1/2 PEX x 3/8 Compression NL 1/4-Turn by Sioux Chief Manufacturing is a reliable valve designed for efficient water control in plumbing systems. This valve features a 1/2 inch PEX connection and a 3/8 inch compression fitting, ensuring compatibility with various piping systems. The 1/4-turn operation allows for quick and easy shut-off, making it ideal for both residential and commercial applications. Constructed from high-quality materials, this stop valve meets industry standards for durability and performance, providing a long-lasting solution for your plumbing needs.