Eva Eco-Performance Posi-Temp Pressure Balance Tub/Shower TrimWith flowing curves, the Eva collection's transitional design is pure and organic. This Eva Eco Performance tub and shower trim is designed for use with the Posi Temp valve that uses a pressure balancing mechanism to maintain the selected discharge temperature within + 3 degrees. An adjustable temperature limit stop controls the maximum hot water temperature to prevent scalding. The trim features an easy to use lever handle, and a 7 1 2" diameter