cUPC certified shower faucet Valve: cUPC certified valve is made of high-purity brass. It does not burst or leak in extremely cold environments, is resistant to weak acid and alkali media corrosion, has high resistance to high pressure, and meets US market standards as a whole. Safe & Anti-scald: The shower kit includes a pressure balance valve, when the cold and hot water supply pressure suddenly changes, the valve body will stop water. Don't worry about be burned by hot water when the cold water stops. Universal Thread Specifications: Standard American NPT 1/2 '' tapered thread, quick and easy installation, compatible with most existing shower systems. Premier Finishing: The high-contrast brushed nickel finish adds a touch of stylish to your decor, multiple-layer plating process resists corrosion and tarnishing through everyday use on the humid environment, corrosion resistance, easy to clean. Perfect matching to modern interior spaces aesthetic. Shower System Includes: 8-inch wall mount rain shower head(304 stainless steel), 16-inch shower arm(brass), Decorative panels, valve bodies, mounting kits. NOTE:Before you place an order,please confirm whether the product size is compatible with your existing shower system