The bathroom has a two-handle sink faucet and I want to change it to a one-handle bathroom faucet. ... Dear Hal: Hopefully you have a standard 4-inch centerset deck-mount faucet.

Deck-Mounted. Deck-mounted faucets are contained on an integrated faucet mount. Controls are compact and tight. ... Two-Handle Faucet. Two-handle faucets are simple and classic.