The 511 33 31 is a compact mini-ball straight supply stop designed for compression to compression installations, offering a quick and reliable connection without the need for soldering. Featuring a 5/8″ OD compression inlet (1/2″ nominal pipe) and 3/8″ OD compression outlet, this valve provides a simple, tool-friendly solution for connecting copper or compatible tubing to common plumbing fixtures.Constructed from lead-free, high-quality American brass with a durable nickel-plated finish, the valve is engineered for long-term durability and corrosion resistance. Its quarter-turn operation allows for fast, precise shut-off, while every valve is tested before leaving the factory to ensure consistent performance and reliability.Designed to meet industry standards, the 511 33 31 complies with NSF, CSA, and potable water requirements, making it suitable for residential and light commercial applications.Backed by dahl's lifetime transferable warranty, the 511 33 31 delivers a dependable, professional-grade solution for installers who prioritize ease of installation and long-term performance. Color: Silver.