Single-handle faucets often have fewer components than double-handle faucets, reducing the chances of leaks and simplifying maintenance. Grohe 2311500A Allure Brilliant Single-Handle Single-Hole Vessel Bathroom Faucet is one such easy-to-clean single-handle bathroom faucet. This vessel bathroom faucet features a Starlight finish and a Grohe SilkMove Cartridge. It comes with a handle and a ceramic disc valve.