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3kDa Ultra Centrifugal Filter Unit, 4mL, Regenerated Cellulose RC Membrane, Screw Caps, Individually Wrapped (15/PK)

3kDa Ultra Centrifugal Filter Unit, 4mL, Regenerated Cellulose RC Membrane, Screw Caps, Individually Wrapped (15/PK)

Q: Are Cobetter centrifuge filters reusable?

We recommend using them once, but some of our customers tried to use it for the same sample up to maximum 3 times, only for reference only.

Q: How to clean Cobetter centrifuge filters?

First, soak them in 0.1M NaOH for 24 hours, then soak them in 20% ethanol for preservation.

Q: Can Cobetter centrifuge filters be used to filtrate exosomes?

Yes, and it is recommended to use 100kDa first and then 3kDa centrifuge filters to concentrate exosomes with serum, and 3kDa centrifuge filters can be used directly for those without serum.

Q: Are Cobetter centrifuge filters compatible with regular centrifuges?

No, they aren't. They are matched to conical bottom centrifuges.

Q: What is the size of the outer tubes?

The outer tubes for 4ml centrifuge filters is 15ml, and the outer tubes for 15ml centrifuge filters is 50ml.

Product ID: 519092072

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🔬3kDa MWCO precision membrane

🧬>90% protein recovery rate

⏱️10-30 min ultrafiltration speed

Frequently Bought Together

3kDa Ultra Centrifugal Filter Unit 4mL Polypropylene Centrifuge Tubes with RC Membrane, Screw Caps (15Pcs)

3kDa Ultra Centrifugal Filter Unit 15mL Polypropylene Centrifuge Tubes with RC Membrane, Screw Caps (4Pcs)

Description

🔬 Filter smarter, not longer — ultrafast precision for the discerning lab pro.

VERSATILE COMPATIBILITY - Works seamlessly with both fixed angle and swing bucket rotors.
SUPERIOR PROTEIN RECOVERY - Maintain over 90% protein integrity for reliable downstream results.
CERTIFIED QUALITY ASSURANCE - ISO 9001:2015 and USP Class VI compliance guarantees lab-grade reliability.
RAPID ULTRAFILTRATION EFFICIENCY - Process your samples in as little as 10 minutes—time is money.
PRECISION MOLECULAR WEIGHT CUT OFF - 3kDa membrane ensures selective filtration tailored to your biomolecules.

The 3kDa Ultra Centrifugal Filter Unit features a regenerated cellulose membrane designed for rapid ultrafiltration with a high protein recovery rate exceeding 90%. Its 4mL capacity and compatibility with multiple rotor types make it ideal for protein concentration, purification, and buffer exchange in professional laboratory settings. Certified to ISO 9001:2015 and USP Class VI standards, it ensures consistent, high-quality performance for critical biomolecular applications.

Have a Question? See What Others Asked

Are Cobetter centrifuge filters reusable?

How to clean Cobetter centrifuge filters?

Can Cobetter centrifuge filters be used to filtrate exosomes?

Are Cobetter centrifuge filters compatible with regular centrifuges?

What is the size of the outer tubes?

Reviews

F**R

Filtros de calidad

Excelente calidad, funcionan muy bien

23.06.2025

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