Bunn 26780.0000 Auger Shaft Seal is a genuine OEM replacement part designed for Bunn frozen drink machines, including models CDS-2, CDS-3, Ultra-1, Ultra-2, and Ultra-2A.his seal ensures a secure fit on the auger shaft, preventing leaks and maintaining optimal performance of your beverage equipment.ade from durable materials, it contributes to the longevity and efficiency of your mach... https://www.partsfe.co.uk/bunn-26780-0000-auger-shaft-seal-1