Savant FastPrep FP 120 Cell Disrupter. A high speed bench top reciprocating device used for the disruption of cell membranes. Features a microprocessor control and LED display. Has a speed range from 4.0 to 6.5 m/s and time range from 1 to 45 seconds. Exterior dimensions of 11â€W x 12â€H x 15.75â€D.