Whether gently mixing, extracting RNA/DNA or destroying the cell wall, this package can effectively and efficiently process your sample. The Bio-Gen PRO200 homogenizer is a hand-held 144 watt homogenizer with variable speed from 5,000 to 35,000 rpm. Choose from the Standard, Deluxe or Premium package. These packages come with a two year parts and labor warranty.Expires Feb 26, 2011