50ml Sterile Centrifuge Tubes with 20mm 0.22um PTFE Filter Membrane Screw Cap, Plastics Conical Tubes for Gas Exchange,Individually Sterilized Package,8pcs

Corrosion-resistant: These tubes are made of high-quality polypropylene (PP) material that is resistant to a wide range of chemicals

Upgraded design: 50 ml conical tubes with 20 mm 0.22 micron PTFE membrane filters allow for gas exchange can ensure the circulation of internal air and external fresh air during operation and prevent contamination

Writing Area: Each centrifuge tube has a designated writing area for easy labeling, clear sample identification, and organization

Accurate Measurement: Black scales on the tubes improve visibility and accuracy, can be measuring reliable and accessing sample accurately

Pre-sterilized: Each 50 ml test tube is individually packaged in a sterile environment and is ready for immediate use without additional sterilization, saving time and increasing safety

The 50 ml centrifuge tubes have an innovative design with highly efficient 0.22 μm PTFE filtration membranes, made for laboratory personnel. These tubes not only provide perfect filtration, but also ensure the samples still sterile, which greatly meets the needs of experiments.