[Construction]: Maximum Flow Rate:1.44 gpm. 5.44L/min. This wall mount tub faucet is made of premium brass material, matte black finish to resist corrosion, anti-rust for long service life. [2 function]: 2-in-1 diverter, you can switch between spout and hand spray. [Swivel Tub Faucet]: You can adjust the spout from left to right 180 degrees to cover a wide range. It's convenient and doesn't take up too much space when not in use. [Concealed Installation]:The American standard NPT1/2 thread ensuring the shower system compatible with any type of pipe. Come with installation instruction. [Warranty]:Promises lifetime warranty, Any problem with this faucet, please contact us, provide any replacement in future use.