Also, check the faucet to double-check that there is a diverter valve nipple for the sprayer.

If the faucet doesnt have a diverter, a sprayer cannot be installed.

Remove Sprayer Flex Line

Remove the sprayer flex line from the faucet body from underneath the sink.

Kitchen sink sprayer pulled by hand

The Spruce / Kevin Norris

With the hose disconnected from the faucet, pull the sprayer hose up and out from above the sink.

The housing should have a gasket of some bang out around the base.

Apply pressure against the housing if tightening the nut causes the whole housing to twist.

Materials and tools to replace a kitchen sink sprayer

The Spruce / Kevin Norris

Run hot water through the sprayer to soften the tubing and allow it to go up and down easier.

Checking under the sink for a diverter valve nipple

The Spruce / Kevin Norris

Turning off water supply using shutoff valve under sink

The Spruce / Kevin Norris

Using wrench to loosen connector and remove sprayer flex line

The Spruce / Kevin Norris

Old sprayer housing removed from under sink

The Spruce / Kevin Norris

Inserting new sprayer housing into sink deck hole

The Spruce / Kevin Norris

Tightening the mounting nut on sprayer housing tailpiece under sink

The Spruce / Kevin Norris

Threading new sprayer hose through faucet housing

The Spruce / Kevin Norris

Sprayer hose fitting connected to diverter nipple under sink

The Spruce / Kevin Norris

Opening water valve under sink to turn on water supply

The Spruce / Kevin Norris