A bath faucet system includes a housing, a diverter assembly, and an internal waterway. The housing forms an outer shell of the bath faucet system and includes a water inlet, a water outlet, and a cavity extending between the water inlet and the water outlet. The internal waterway is disposed within the cavity between the water inlet and the water outlet. The internal waterway includes a water jacket and a hose. The water jacket is coupled to the water inlet and configured to contain water flowing into the housing via the water inlet. The water jacket includes a hose connector along an outside surface of the water jacket. The hose includes a first end coupled to the hose connector, a second end coupled to the water outlet, and a central portion connecting the first end to the second end and configured to prevent water from contacting the housing.