Two-hole centerset deck-mount bathroom faucets install onto bathroom sinks that have two centered holes that are 4" apart when measured from center-of-hole to center-of-hole. They can also be used to cover an unused middle hole on sinks with a three-hole centerset pattern. These one-piece units have a spout and one or two handles on a single base. They are simpler to install than faucets with multiple faucet mountings. The hot and cold water supplies flow through the pipes and faucet fittings in each hole and join inside the spout. These faucets provide water for handwashing and grooming tasks.