Airfoil - the design inspiration of Airfoil is "chan" - a Chinese philosophy expressing a very peaceful, meditative feeling coming from a communion with nature. Design connoisseurs will love the smooth as well as the contemporary pin point motif. FEATURES Solid brass construction for durability and reliability KOHLER ceramic disc valves exceed industry longevity standards by two times for a lifetime of durable performance. KOHLER finishes resist corrosion and tarnishing, exceeding industry durability standards two times