This Faucet body is made from sturdy brass, ensuring high quality and longevity,extra-large overhead shower is made from SUS 304 stainless steel Standard U.S.Threads: Our connectors are standard 1/2 NPT tapered threads, compatible with most existing shower systems. All hardware and parts are included Air pressure technology: Inject the air into rain Showerhead to mix water with air, and the water pressure up to 2.5GPM instantly, giving you a pleasant Shower； with self-clean nozzle, easy to clean and maintain