Delta®’s Linden 17 Series valve trim in chrome 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. Monitor pressure balance valve keeps water temperature within a safe +/-3degrees F (+/-1.6degrees C), helping to protect you from sudden changes in hot or cold water pressure Dual-function pressure balance cartridge Trim only, must order MultiChoice universal rough-in R10000-UNBX separately to complete the unit Delta Trinsic 14 Series Shower Trim Set - without Shower Head - Matte Black