Though top-of-the-line models may cost $400 and serviceable units can be as little as $100, expect to pay close to $300 for a quality dispenser.

Many styles are available, from low spouts with handles you twist to tall, gooseneck units that allow plenty of room for filling tall cups and kettles. Chances are good that you can find a dispenser to match the look of your sink fixtures. Typical finishes include white, black, almond, chrome, satin nickle, and brass.

Some units, such as KitchenAid’s and Whirlaway’s, have a twist grip that releases water with a quarter turn. Others, such as In-Sink-Erator’s, have a lever release. Elkay’s spouts, which tout “no lead” construction, have a button on top. Franke makes the smartly styled Little Butler, which has a tall, L-shaped spout and a lever handle.

Why we like it: • Tall, rounded gooseneck shape • Single lever control, satin nickel finish • Low price

Some manufacturers—Franke and In-Sink-Erator to name two—offer models that dispense both hot and cold water through one faucet. The cold water side can be connected to a chiller, or both supplies can be hooked up to a water treatment system. This type of faucet eliminates the need for yet another spout—the purified cold water spout—at the sink.

For sinks that don’t have the needed mounting hole for a new faucet, replacing a purifier spout with one of these is the perfect solution.