The Delta Steam System is an optional add-on to the 5GE-SMP Series Steam Generator. It combines a Generator Pan that provides elevated generator support and an Auto Drain that automatically purges water from the system after each steam shower. Automatically purges the system by gravity once water in the generator cools Connects to a factory installed auto drain terminal block located inside the generator cabinet Valve body with 1/2" NPT brass female connection Designed for use with 208V and 240V 5GE-SMP Series Steam Generators (voltage should match the voltage of your generator) Inlet & Outlet Connection: 1/2" NPT Brass Female Thread