Two Lever handles control both on/off activation and temperature setting 5" (127 mm) spout reach 1.2 gpm (4.5 lpm) maximum flow rate at 60 psi (4.14 bar) KOHLER ceramic disc valves exceed industry longevity standards for a lifetime of durable performance Metal touch-activated drain with 1-1/4" tailpiece This product can help a building earn Water Efficiency points in LEED Green Building Rating System