The 1.75 gpm adjustable spray of this showerhead delivers a broad, rain-like spray or a focused, pulsating massaging spray * is self-cleaning, and the non-aerated spray mean less temperature loss between the showerhead and you * This showerhead has a plastic showerhead with a chrome finish and a chrome plated brass collar. Standard 1/2" inside threads * Standards and Certifications: CSA, California Energy Commission, ANSI * Manufacturer Warranty: 10 years