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Polytetrafluoroethylene (PTFE) - Hydrophobic, does not allow water to pass without high pressures. Aqueous solutions can be filtered if the membrane is initially "wetted" with alcohol or another appropriate solvent.
Designed for easy filtration of hard-to-filter samples. Use 13mm diameter filters for samples up to 10mL.
Each unit includes a stack of Whatman Multigrade GMF 150 (10:1um) and Grade GF/F 0.7um prefilters.
Polypropylene housing .
Female Luer-Lok* inlet; male slip Luer outlet.
Autoclavable at 121°C (250°F) at 15psi for 20 minutes.
Maximum temperature, 131°C (267°F).
Filtration area: 13mm - 1.3cm2.
Pressure limit: 13mm - 100psi.
All materials biosafe—pass USP Class VI requirements.