Hansgrohe 04552005 Metris Bathroom Faucet, Chrome Long lasting quallity, Solid brass contruction; Included base plate allows for in 1 or 3 hole config The EcoRight function reduces both water and energy consumption, leading to an economical flow rate Ceramic cartridge provides smooth, leak-free operation Boltic Lever Lock prevents hande from becoming loose during repeated operation. QuickClean easy-maintenance silicon aerator resists limescale buildup