Filters are Triton-free and have a bidirectional membrane support. Membrane type and pore size are printed on each filter for easy identification. All Cole-Parmer syringe filters are 100% integrity tested and manufactured in accordance with ISO 9002 standards. They are certified nonpyrogenic and noncytotoxic.

Warning: This product is not approved or intended for, and should not be used for medical, clinical, surgical or other patient oriented applications.