Materials: Our bathroom shower valve components and shower heads are all made of high-quality solid brass. This high-quality thermostatic bathtub shower mixer valve undergoes rigorous component and manufacturing quality inspection and is well-designed. Features: For this thermostatic shower valve to operate efficiently, your water pressure needs to be at least 0.5 bar, but we recommend using 1.0 bar for optimal performance. Easy installation: The shower riser kit can be easily installed in just a few minutes. Minimal tools are required, and one person can operate it. Please refer to the product installation instructions for details. Faucet Details - The premium ceramic valve core has undergone over 5,000 tests to ensure its leak-proof function; the built-in aerator helps regulate water flow, preventing splashing and side spraying, thus saving water.