Developed to offer a reliable liquid transfer solution for molecular laboratories, all the MoleTekâ„¢ Pipette tips are molded from high quality medical grade polypropylene (PP) material, manufactured and packed in a clean room referring to the ISO Class 5 Standard, free of DNA, DNase, RNase and PCR Inhibitor. The MoleTekâ„¢ pipette tips can be delivered in both MoleTekâ„¢ SA (regular) and MoleTekâ„¢ LA (low retention) formats, which both tips with filter and tips without filter are available, perfectly coverage a wide variety of applications.