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  • Clearance
  • Top Sellers
  • Chemicals
  • Bottles and Containers
  • Closed Systems - Port Caps
  • ECO Funnels
  • Furniture
  • Geek Chic
  • Health Care and Medical
  • Industrial Products
  • Lab Supplies and Equipment
  • Outdoor Storage Buildings
  • PPE
  • Pharmacy
  • Signage
  • Training & Teaching
  • Waste Containers

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  • Justrite
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    • Nalgene® Filter Funnels

    ThermoFisher Nalgene® Single-Use Disposable Filter Funnels are offered with different membranes for various applications and are easily identified by their collar color.

    • PES (Polyethersulfone) - blue collar: The ultimate cell and tissue culture media membrane. Low protein binding, low extractables, no external wetting agents, fast flow.
    • SFCA (Surfactant-free cellulose acetate) - yellow collar: Much cleaner than standard cellulose acetate. Low protein binding, no wetting agent. A Nalgene® product exclusive.
    • CN (Cellulose Nitrate) - green collar: The standard membrane for filtering of buffers and solutions.
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