Delta Windemere Series. 2 S-lever handles, arc spout 5-1/8 Inch L. x 5-7/8 Inch H., 3-hole 4 Inch center installation, metal pop-up. WaterSense labeled product. The flow rate of 1.2 GPM (gallons per minute). 1/2 inch I.P.S. connections, 1-1/8 Inch maximum deck thickness. ADA compliant. Complies with California lead-free law AB1953.