Thermo Scientific Nalgene 250 mL Analytical Filter Unit, Cn, Sterile 0.2um, White/None

Thermo Scientific Nalgene Low-cost disposable, sterile filter funnels for microbiological analysis testing, food/beverage, raw material, sterility testing and finished product quality. Consists of polypropylene upper housing, high-impact polystyrene collar and white cellulose nitrate (cn) membrane. Graduated upper housing separates easily from collar for easy access to the membrane. Catalog no. 977-10492 Features gray membrane with white grid that turns black when wet, making it easier to detect and count growing colonies. 0.45 µM membrane filters meet apha standard methods and have official certification for water quality work. Funnel adapter allows use with no. 8 Stopper (catalog no. 977-20176). Six funnel adapters included with each case. Membrane diameter is 47 mm. Warning: all Nalgene filterware are for research use only, not for in vitro diagnosis or parenterals.
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