Hansgrohe 04180820 Allegro E Single-Hole Lavatory Faucet, Brushed Nickel 3/8-Inch OD CxC 4-Inch spout reach; 3-Inch aerator clearance Single-hole mounting; 1-5/8-Inch max deck thickness Features solid brass construction, an M2 ceramic cartridge, boltic handle lock, and a cascade no-clog aerator Can be installed in a 3-hole configuration if installed with optional base plate (Hansgrohe model# 06490820)