Nalgene Mf75 Series Polystyrene Lab Filter Unit, Yellow Collar, 0.2 Micron, 50Mm Product Details This MF75™ series polystyrene filter unit has a 250mL upper with a 250mL receiver. Graduations on both uppers and receivers. Leakproof 1-1/2 turn threaded screw closure provided for receiver. Separate transparent sterile receivers are available. Each case includes 12 glass-fiber prefilters. Yellow collar. Material: polystyrene housing with a SFCA membrane. Membrane diameter: 50mm. Pore size: 0.2µm. Upper capacity: 250mL. Receiver capacity: 250mL. 12 per case. Nalgene #: 157-0020. Upper capacity: 250ml; receiver capacity: 250ml Material: polystyrene housing with a SFCA membrane Membrane diameter: 50mm; pore size: 0.2µm Graduations on both uppers and receivers; leakproof 1-1/2-turn threaded screw closure provided for receiver Yellow collar

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