Repair your leaky faucet with this Danco 7S-4D stem extension for Delta faucets. Sometimes the shower valve faucet depth of the rough is incorrect due to a very thick wall. In these instance you will need shower stem extensions to make up the difference. This stem extension provides additional length for tub or shower stems. It is compatible with hot and cold water diverter applications. This stem extension is designed for use with Delta faucets and does not require a seat.