1.2 GPM flow rate All metal construction includes push & seal™ drain Ultra seal ceramic disc valves Fixed hubs 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 NSF/ANSI/CAN61 : Q≤1 CEC certified/CALGreen compliant EPA WaterSense certified ADA compliant – ANSI A117.1 (lever handle only).