California Approved - Special 1.8 GPM flow restrictor to meet California energy regulations. UNLIKE OTHER SHOWER HEADS THAT are made from cheap, thin plastic that leaks after a few showers, the Aqua Elegante Shower Head has a THICK LAYER of ROBUST ABS THERMOPLASTIC RESIN that is BPA FREE. The high pressure showerhead RESISTS CORROSION, WITHSTANDS PHYSICAL IMPACT, and DOESN'T RUST - while still being LIGHTWEIGHT and EASY-TO-HANDLE. What this means to you is a LONG LASTING shower head without having to deal with internal leaks.