Powers offers a line of ASSE 1016 (Type T/P) shower valves featuring an advanced thermal actuator (ATA) that provides unparalleled response time. HydroGuard T/P Series e700 is a combination valve offering both temperature and pressure protection at a low cost. HydroGuard T/P responds to pressure changes of 50% or more, meeting the requirements placed on pressure balancing valves by ASSE 1016 (traditional thermostatic shower valves can accommodate only 20% pressure fluctuations as defined by the standard). The valve features an approach temperature of 5°F, allowing the mixed temperature to be within 5°F of the hot water supply temperature.Powers, A Watts Industries Co.