Danco 35715B Faucet O-Ring, #78, 7/16 in OD x 1/4 in ID Dia, 3/32 in Thick, Rubber

The Danco O-rings will repair your leaky faucet. Faucets usually have one or more O-rings to prevent water from leaking out around the spout. Replacing worn-out O-rings is an inexpensive alternative to replacing the entire faucet fixture.