Clamp, Sst-.571/.699 Dia17.0 is a genuine Bunn OEM replacement part. Part number 21275.0003 is used for certain commercial beverage equipment made by BUNN. This part will help repair specific issues you are having with Bunnomatic model AFP, CBDSPCT-Nitron2, ITB, ITCB, JDF2S, JDF4S, TB3Q, ULTRA2 commercial machines. Replace this part if BUNN or a service technician has instructed you to do so. Over time Clamps may need to be replaced because of normal wear and tear or if damage has occurred to the existing part. When replacing BUNN part #21275.0003 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 Clamp, Sst-.571/.699 Dia17.0 fits your specific needs.