LW Scientific Replacement Thumbscrew for V24 Combo Centrifuge Black. Spark out rotors now have a rounded ED front and back for increased clarity. The swing out rotors also have a new alignment feature to make opening and closing the rotors easier. The updated screws also allow for a tighter fit for these rotors. All new digital controls with a digitized display and built-in memory make this the most convenient and easy to use centrifuge on the market.LW Scientific no longer includes the Fluorotope module with the V24. This is a complete rebuild of the V24. All new motors and controls are fully overhauled to be in perfect working order. All new motors have been tested and meet the original equipment spec. All new motors have been tested to be over spec. There were also some internal improvements made to the lid to be in compliance with the blood borne pathogen standard. There were also improvements made to the lid to be in compliance with the blood borne pathogen standard. There were also improvements made to the rotor housing to meet the strict nuclear and radiation safety standards. Specifications for LW Scientific Centrifuges: Manufacturer: LW Scientific Color: Black Features of LW Scientific Centrifuges Theubscres secures the various rotors for the Combo V24 Centrifuge Package Contents: LW Scientific Centrifuges LW Scientific CMR-MECH-THBS: Replacement Thumbscrew for V24 Combo Centrifuge Black