1.8 GPM flow rate 3 function showerhead (spray, massage and combo) Brass ball joint Order 941-055 For 1.5GPM shower head insert Limited lifetime warranty Pfister products are designed and manufactured in compliance with the following standards and codes : IAPMO Certified to ASME A112.18.1/CSA B125.1 CEC certified/CALGreen compliant EPA WaterSense certified.