KOHLER K-10579-4P-BV Bancroft Monoblock Lavatory Faucet with White Ceramic Lever Handles, Vibrant Brushed Bronze For single-hole installation or 4-inch centers with escutcheon KOHLER ceramic disc valves exceed industry longevity standards two times for a lifetime of durable performance Solid brass construction for durability and reliability KOHLER finishes resist corrosion and tarnishing, exceeding industry durability standards over two times Flexible supply lines