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Disposable Vacuum Filter Unit 0.1μm Double-layer PES Membrane, Sterile
Membrane PESPore size 0.1μmPackage 4/9/24 pcs/pk -
Disposable Vacuum Filter Unit 0.2μm PES Membrane, Sterile
Membrane PESPore size 0.2μmPackage 4/9/24 pcs/pk -
Disposable Vacuum Filter Unit 0.45μm PES Membrane, Sterile
Membrane PESPore size 0.45μmPackage 4/9/24 pcs/pk -
Disposable Vacuum Filter Unit 0.2μm Hydrophilic PVDF Membrane, Sterile
Membrane Hydrophilic PVDFPore size 0.2μmPackage 4/9/24 pcs/pk -
Disposable Vacuum Filter Unit 0.45μm Hydrophilic PVDF Membrane, Sterile
Membrane Hydrophilic PVDFPore size 0.45μmPackage 4/9/24 pcs/pk -
Disposable Bottle Top Filter Funnel Only 0.2μm PES Membrane, Sterile
Membrane PESPore size 0.2μmPackage 18/pk

Cobetter disposable vacuum filter units (or bottle top vacuum filters) are used for filtration of biological samples, cell culture, tissue culture media, buffer and other aqueous solutions. They are vacuum-driven pressure filters and are designed for large volume sample filtration with different sizes including 150mL, 250mL, 500mL and 1000mL. The filter unit consists of a polystyrene bottle-top filter funnel joined by a HDPE adapter, a polystyrene lid, a polystyrene receiver bottle and a separate HDPE cap.
Applications by Membranes
- Asymmetric PES (Polyethersulfone) membranes provides high flow rates and low protein binding, which are recommended for filtering culture media
- Hydrophilic PVDF (Polyvinylidene Fluoride) membranes features very low protein binding and low extractable, which are ideal for filtration of protein-rich solutions
Applications by Pore Size
- 0.1 µm for mycoplasma removal.
- 0.2 µm for the sterile filtration of cell culture, media, buffers, and reagents.
- 0.45 µm for the clarification of aqueous and viscous solutions.
Features
- Pre-sterilized and ready to use bottle top vacuum filters.
- Disposable units with integrated membrane and funnel.
- Ideal for 100ml to 1L volume sterile filtration.
- Compatible with vacuum pumps or aspirators.
- High flow rate and low protein binding.
How to Use a Disposable Vacuum Filter Unit?
1. Setup:
- Attach the vacuum filter outlet to a vacuum pump via tubing.
- Place a sterile collection flask underneath.
2. Filtration:
- Pour the sample into the filter funnel.
- Vacuum pressure pulls liquid through the membrane, retaining contaminants.
3. Disposal:
Discard the entire vacuum filter unit after use to prevent cross-contamination.
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