Designed for ease of use and better performance. Polypropylene Upper, Polystyrene Lower, CN Membrane. Upper twists off easily for improved retrieval of the 47-mm membrane. Wider base is stable on the bench. Non-silicone gasket minimizes risk of contamination. Top and receiver each have 150mL capacity. Excellent for microbial analysis, sterility testing, water quality or environmental testing. F2340-1 is sterile. All NALGENE 0.45 µm pore size cellulose nitrate filter membranes as well as certain products containing these filters are certified for water quality work. This means these filter membranes have been manufactured in accordance with materials standards or procedures reference in: American Public Health Association (APHA) Standard Methods,Current Edition, The U.S. Safe Drinking Water Act. P.L. 93-523. Easy-opening bag. WARNING! All NALGENE Filterware is for research use only, not for in vitro diagnosis or parenterals.
