Ara Monitor 17 Series Valve Only Trim offers the great looks and quality engineering that fit your lifestyle. 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.