PES Centrifugal Filters, 30K MWCO, 15mL, White Cap, Nonsterile, 24/Box, 4 Boxes/Case
GVS SKU: CEF15W030KD24040

Featuring a low-binding polyethersulfone (PES) membrane with a 30K molecular weight cut-off (MWCO), these 15mL centrifugal filter units deliver fast, gentle concentration and purification of proteins and other macromolecules. The hydrophilic PES membrane handles a maximum sample volume of 5mL and reduces it to a final concentrate volume of 40 to 100 microliters, while the conical format integrates a filter cartridge into a polypropylene tube for direct spin-and-recover workflows. Each white-capped unit is supplied nonsterile and packaged 24 per box with 4 boxes per case.

Key PES Membrane Characteristics

• Hydrophilic structure wets out readily for consistent flow and reproducible recovery.
• 30K MWCO size exclusion retains target macromolecules above the cut-off while passing salts and smaller solutes.
• Low protein and nucleic acid binding supports high sample recovery of concentrated material.
• High-flux PES medium provides rapid filtration to shorten spin times.

Key Construction Characteristics

• Filter housing: Acrylonitrile Butadiene Styrene (ABS) filter cartridge with a polypropylene (PP) conical receiver tube.
• Format: 15mL conical tube with a 5mL maximum sample volume and a 40 to 100 microliter final concentrate volume.
• Centrifugal force: rated to 3,000 g in a swinging bucket rotor and 7,500 g in a fixed angle rotor.
• Operating temperature: 0 to 40 degrees C.
• Closure and packaging: white cap, nonsterile, 24 units per box, 4 boxes per case.

The vertical membrane geometry and conical design maintain high flow rates and protect sample integrity throughout processing. The dead-stop pocket helps prevent over-concentration to dryness, preserving labile targets and ensuring reliable, repeatable recovery for downstream analysis.

Capacity

15 mL

Color

White

Construction

Acrylonitrile Butadiene Styrene (ABS) filter cartridge with Polypropylene (PP) conical tube

Holdup Volume

40-100 µl final concentrate volume

Material

Polyethersulfone (PES)

Max Batch Volume

5 mL

Maximum Operating Temperature (°C)

40

MWCO(Da)

30000

Pack Count

96

Sterility

Nonsterile

Vial Cap Type

White Cap

Wettability

Hydrophilic

• Protein Concentration Concentrates dilute protein solutions up to 5mL down to a 40 to 100 microliter retentate while retaining species above the 30K cut-off.
• Buffer Exchange Supports rapid buffer exchange and diafiltration of macromolecules using the low-binding PES membrane.
• Desalting Removes salts and small solutes below the 30K MWCO while retaining target proteins and biomolecules.
• Molecule Purification Purifies enzymes, antibodies, and similar macromolecules from lower molecular weight contaminants.
• Protein Fractionation Separates macromolecules by size using the 30K MWCO membrane for fractionation workflows.
• Sample Preparation Prepares concentrated biological samples for downstream chromatography, electrophoresis, and analytical assays.