If you only have one hole in your space, then you must choose a single handle bathroom faucet unless you want to tackle the process of drilling additional holes in the sink. Grohe 23085000 BauLoop S-Size 1-Handle Bathroom Faucet is one beautiful single hole bathroom faucet which goes perfectly with any style. The BauLoop Faucet Collection is an exceptional value, delivering superior design and the advanced technology that are hallmarks of every GROHE faucet.