Delta Auto Drain 240v - 5GADelta Auto Drain 240v 5GA Our auto drain is an optional accessory that automatically purges water from the system after each steam shower. Auto Drain 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 female brass connection For use with 5GE SMP 240v steam generators. The voltage should match the voltage of