These Danco faucet washers can help you repair your leaky faucet. Replacing the seals on the faucet stem will create a better seal and help prevent water leaks. Faucets usually have one or more O-rings that prevent water from leaking out around the spout. Replacing worn out O-rings is an inexpensive alternative to replacing the entire faucet fixture. Stopping the leak saves both water and energy.