[304 Stainless Steel]:, The faucet water filter is a one-piece shell, made of 3 mm thick lead-free 304 stainless steel material, durable, hygienic, no welding, no rust, no cracks, no leakage, no metallic taste [NSF/ANSI 42 Standard]: Sink filter element meets NSF/ANSI 42 standard, reducing chlorine and heavy metals, improving taste; retaining beneficial minerals [360 Rotation & 2m Filtration]: Free-swivel water filter faucet allows water to flow in any direction, improving taste and reducing contaminants: chlorine, lead, fluoride, rust, dirt, sand, odors, odors and particles up to 2m [Easy Installation]: The sink faucet water filter only works with standard faucets. Multiple adapters included for different faucet sizes, easy to install with no additional tools required.