Delta T17T292-SS Addison Tempassure 17T Series Shower Trim, Stainless 2.5 gpm, 9.5 L/min Must purchase rough-in R10000-UNBX separately Thermostatic cartridge measures and monitors the temperature of the water and automatically adjusts to maintain a more precise water temperature Full collection includes wallmount lavatory, raincan showerhead and matching accessories Thermostatic valve with volume control Zinc