The HydraChoice Body Spray System Rough-In one rough-in with unlimited possibilities. Delta's separate rough and trim program allows you to switch your trim without the hassle of changing your rough-in as well. Another great benefit is the ability to have your plumber install the rough-in before you've decided on the trim you want. By installing the rough-in first, you can later decide what type of trim will go perfectly in your bath. Timeless design for today's homes.