Vacuum-driven devices that work with a variety of solid phase extraction cartridges, columns, or disks for sample preparation; includes tubing, replacement components, collection racks, safety trays, gaskets, and adaptors.
Unlike other vacuum manifolds, the Visiprep system contains a patented valve system that allows for precise flow control through each SPE tube via rotating, independent, screw-type valves situated in each port within the manifold cover.