Protect against cross-contamination using these racked, sterile filter pipette tips. These universal tips are manufactured from polypropylene and the filters are manufactured from polyethylene with a hydrophobic design to prevent liquids and aerosols from entering the body of the micropipette. These tips are non-cytotoxic, non-hemolytic, and have 99.9% Bacterial Aerosol Filtration Efficiency (BFE). DNase, RNase and Pyrogen free. Packaged in racks of 96 with 10 racks in each case except the 1000µL (racks of 100 with 10 racks).