The Valterra Faucet to Garden Hose Sink Adapter lets you attach a standard garden hose to your bathroom faucet. This allows for easy flushing and cleaning of your black water tank with hot water. Rubber washers are included to prevent leaks. Fits multiple faucet types. Rubber washers included to prevent leaks | Valterra Faucet to Garden Hose Sink Adapter in Black