Features an inert, hydrophobic barrier that prevents pipettor contamination, these tips are ideal for molecular biology applications like PCR.  Aerosol barrier will not trap liquid or contaiminate samples in the event of over-pipetting.  Tips are certified RNase/Dnase free, Human DNA free, PCR inhibitor free, Pyrongen free; and fits most research-grade pipettors.  Also available with Low Binding Surface Technology.