Two 25 mm monitor types are available: a 3-piece polystyrene monitor with 16 mm center ring and female Luer slip vacuum connection, and a 3-piece carbon-filled polypropylene conductive monitor with 50 mm extension cowl.
Biologically inert mixtures of cellulose acetate and cellulose nitrate have made MF-Millipore membrane filters one of the most widely used membranes in analytical and research applications. Triton surfactant-free MF-Millipore filters contain minimum amounts of wetting agent and have a lower water extractable content than standard MF-Millipore filters.