This Flow Control Assembly,Tnd .195GPM is a genuine Bunn OEM replacement part. Part number 20528.1195 is used for certain commercial coffee equipment made by BUNN. This part will help repair specific issues you are having with Bunnomatic model OT, RT, TB3 Coffee Brewers. Replace this part if BUNN or a service technician has instructed you to do so. Over time Str/Cntrl for Bunn OT, RT, TB3 Coffee Brewers may need to be replaced because of normal wear and tear or if damage has occurred to the existing part. When replacing BUNN part #20528.1195 it is suggested that no power or water is connected to the machine and you are working in clean and non hazardous environment. Please be sure Flow Control Assembly,Tnd .195GPM fits your specific needs.