Steriflip-GP Sterile Centrifuge Tube Top Filter Unit

Sterile, 50 mL process volume, 0.22 µm pore size, polyethersulfone membrane, sterilized by gamma irradiation



methacrylate-butadiene-styrene (MBS)
polyethersulfone membrane

Quality Level




holdup volume 0.6 mL




45 °C max. temp.
50 mL process volume


sterile filtration: suitable


138 mm


6.4 cm

filter diam.

40 mm

filtration area

7 cm2

funnel capacity

50 mL


Express PLUS

pore size

0.22 μm nominal pore size
0.22 μm pore size

test parameters

sample volume: 50 mL


double lead thread inlet (with vacuum port)
double lead thread outlet for 50 mL centrifuge tube

shipped in


Related Categories

General description

The Steriflip filter unit is designed to work with standard 50 mL centrifuge tubes, which eliminates sample transfer. To filter, just attach the unit to a 50 mL centrifuge tube containing your sample, flip it over, and apply the vacuum. When finished, the filtrate collects in the attached 50 mL centrifuge tube.

New pore sizes ideal for Cell Isolation applications

Steriflip Nylon Net filters are now available in 40, 60 and 100 µm pore sizes, making them ideal for stem cell, cardiomyocite, neurological and skeletal tissue applications. The vacuum-assisted, closed system option ensures sample sterility while enabling faster separation of large volumes of cellular material and improved recoveries.

The Steriflip® filter unit eliminates messy pouring during sample transfer. Directly attach the unit to a 50 mL centrifuge tube containing your sample, flip it over, and apply vacuum. The filtrate collects in the attached 50 mL centrifuge tube. Steriflip filters come in different pore sizes that are ideal for cell isolation. These include nylon net filters in 40, 60 and 100 µm pore sizes, which are ideal for stem cell, cardiomyocyte, neurological and skeletal tissue applications. The vacuum-assisted, closed system ensures sample sterility while enabling fast separation of large volumes of cellular material for efficient recoveries.

Features & Benefits:
Eliminates messy sample transfer via a simple vacuum-assisted, closed system
Isolate cells from cellular debris using any of the various pore-sized nylon net filters
Ideal for sterilizing small batches of culture media
Attaches to any standard 50 mL centrifuge tube, eliminating unnecesary materials, time and risk of spillage
Sterilization of Aqueous Solutions (up to 50 mL), Sterile Filtration of Small Batches of Culture Media, Sterile Filtration of Buffers with High Value Protein or Small Molecule Components, Cell Isolation
50 mL centrifuge tube with cap



Physical form

Color Code: Clear

Preparation Note

Sterilization Method
Gamma irradiation

Other Notes

Directions for Use
  • Organism Retention: Microorganisms
  • Mode of Action: Filtering
  • Application: Sterile Filtration
  • Intended Use: Sterilization of aqueous solutions
  • Instructions for Use: Please refer to Instructions for Use section of Steriflip® user guide
  • Storage Statement: Store in dry location
  • Disposal Statement: Dispose of in accordance with applicable federal, state and local regulations.

Legal Information

EXPRESS PLUS is a trademark of Merck KGaA, Darmstadt, Germany
Steriflip is a registered trademark of Merck KGaA, Darmstadt, Germany
Christoph Ratzke et al.
Nature ecology & evolution, 4(3), 376-383 (2020-02-12)
Organisms-especially microbes-tend to live together in ecosystems. While some of these ecosystems are very biodiverse, others are not, and while some are very stable over time, others undergo strong temporal fluctuations. Despite a long history of research and a plethora...
Jean-Christophe Cocuron et al.
Plant physiology, 181(3), 961-975 (2019-09-19)
Enhancing fatty acid synthesis (FAS) in maize (Zea mays) has tremendous potential nutritional and economic benefits due to the rapidly growing demand for vegetable oil. In maize kernels, the endosperm and the embryo are the main sites for synthesis and...
Li Qiao et al.
Theranostics, 10(8), 3474-3487 (2020-03-25)
Cancer is the second leading cause of death worldwide and patients are in urgent need of therapies that can effectively target cancer with minimal off-target side effects. Exosomes are extracellular nano-shuttles that facilitate intercellular communication between cells and organs. It...
Purification protocols for immunoglobulins generally include affinity binding to Protein A or G chromatography media, washing unbound proteins, and eluting with a low pH buffer.
Read More
The ELISpot (Enzyme Linked Immuno-Spot) assay provides an effective method of measuring the antibody or cytokine production of immune cells on the single cell level.
Read More

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.