Ge Bio-Science Hybond Membranes & Accessories Pack RPN203B by GE Healthcare Bio-Sciences GROUP: Lab Equipment & Accessories:Filter Papers & Membranes:Membrane Filters Item Description: Membrane, Nylon, Positively Charged, 20cm x 3m, 50 rolls/pk (Ships on ice) Packaging Desc: Membrane Nylon Pos 20Cmx3M50Rl/Pack Country of Origin: Harmonized Tariff Code: Product Description: These high quality membranes are used in blotting applications such as Western, Nothern, and Southern blots, dot blots, DNA fingerprinting, colony blots and expression screening. The Hybond range has grown through the years to include nucleic acid- and protein-binding membranes optimized for radioactive, nonradioactive or fluorescent probes.