A valve assembly for a shower/tub system is provided. The assembly includes a valve body assembly having a molded base, a first inlet connection fitting configured to fluidly attach a first fluid source to the molded base, a second inlet connection fitting configured to fluidly attach a second fluid source to the molded base, a first outlet connection fitting configured to fluidly attach a shower fixture to the molded base, and a second outlet connection fitting configured to fluidly attach a tub nozzle to the molded base.