Best Single-Hole Bathroom Faucet Vigo Davidson Single-Hole Bathroom Faucet. The single-hole design of this Vigo faucet is convenient to install and takes up just 1 3/4 inches of space on your sink ...

A 4-inch centerset bathroom faucet connects to a three-hole bathroom sink. So if you have a three-hole sink with the outside holes 4 inches apart, you should be able to install a single-handle ...