Previous Product Next Product Belt Speed Control This potentiometer is used to control the speed on the Model 105, 185, 19, 175, and 175R. SKU 42000001 SKU: 42000001 Categories: Model 105, Model 175 and 175R, Model 185, Model 19, Spare Parts Related products Quick View Quick View Model 425, Spare PartsTemperature Controller Programed for Model 425 Read more Quick View Quick View Spare Parts, Model 185, Model 19Foam Pad Set Read more Quick View Quick View Spare Parts, Model 175 and 175RMotor for Model 175 and 175R Read more