Asahi Higashi Denki Leakage Breaker KD-LS 2123N CORONA EcoCute This part was removed from a CTU-H3717A unit, but may be usable in other applications. It was removed from a unit that was functioning normally, but please understand that this is being sold as a junk item. We appreciate your understanding. *Please note that we are unable to answer specialized questions. We are also selling other parts from the same model, so please take a look if you're interested.