Yes we have the VT4/2 230V Sterilight System. According to Viqua, there is no VT4/12 system that we can find. This is the link to the correct product on our website.
https://www.wahlwater.com/Viqua-Sterilight-35-GPM-Tap-Ultra-Violet-UV-Disinfection-System-VT42_p_1151.html