All brass construction
Bottom trim handle contains temperature indicator in fahrenheit so user can set water to desired temperature with no need to adjust further
Top trim handle turns the water on and off, controls the volume of the water and diverts the water
Requires rough valve J-TH34-686 for 2 functions, J-TH34-688 for 3 functions, J-TH34-687 for 2 shared functions or J-TH34-689 for 3 shared functions