These are inexpensive, multi-purpose columns designed for a wide range of analytical separations using aqueous buffers. The disposable feature eliminates the possibility of cross contamination. The 8mm inner diameter is uniform, assuring reproducibility. The 200mm length of the Disposaflex column can easily be cut to shorter length. The polypropylene reservoir has a 9mL capacity. The lower column fitting with a Luer outlet is molded poropropylene with a specially designed recess to securely hold a porous polyethylene bed support or a glass wool plug. Supplied unassembled with a column, polypropylene reservoir and lower column fitting.