The Brass Compression Stopcock – 15 mm (WRAS-approved) is a high-quality shut-off valve engineered for secure and reliable control of water flow in both residential and commercial plumbing systems. Crafted from solid brass and featuring a polished finish, it resists corrosion and delivers enduring performance, even in high-moisture environments. The 15 mm compression fittings ensure a snug, leak-free connection to standard copper pipework, and the compression design allows for easy, tool-free installation and removal. Operated via a sleek lever or a precision-engineered spindle, the stopcock provides smooth, precise control—ideal for isolating fixtures during maintenance, repairs, or emergency shut-offs. Its streamlined profile makes it unobtrusive when installed beneath sinks, behind toilets, or at manifolds, while internal seals maintain consistent performance over thousands of operations.