Jones Stephens PEX x Compression Supply Stop Valves control water flow to household plumbing fixtures such as faucets and toilets, and major appliances such as dishwashers, washing machines, and refrigerator ice makers. By turning the valve handle, the flow of water leading to the plumbing fixture can be stopped, allowing for maintenance and repair without turning off water to the entire home. Chrome plated and manufactured of corrosion-resistant materials, all parts are designed with quality engineering and construction to be durable and reliable and to meet Jones Stephens’ highest quality standards.