ROHL thermostatic showers feature valves that have two handles. One handle controls the temperature while the other controls the volume. Unlike a pressure balance shower, a thermostatic shower valves react to the temperature rather than the pressure of the water. With this type of shower, you can change the flow volume without affecting the temperature which is beneficial for conservation when shampooing, or shaving, as an example. Whether your showering preference is a gentle, relaxing rainfall or a rejuvenating cascade of water, a ROHL shower can accommodate your every desire. Our wide array of fine showerheads, body sprays, valves and accessories give you the freedom to check off every item on your wish list. Brass construction Wall mounted installation Trimplate and temperature control handle for the R1085BO and 1005N rough valve Temperature control includes pre-set safety stop with override Must order R1085BO and 1005N rough valve to complete Extension kit included for installation with R1085BO and 1005N universal rough valve