Little things makes big differences. The angel on AHN Biotechnologie Ultra Low Retention tips reduces the surface of the tip orifice with the receiving vessel. This angel combined with an ultra-thin orifice reduces the effect of liquid samples creeping up the side of the tip (capillary effect). By reducing this capillary effect, ULR tips and filter tips dispense more accurate volumes. This new innovating universal low retention tip fits all popular pipettors and fits through the innovative design also in small reaction vessels. Choose AHN ULR tips version for easier drop touch off. Graduated AHN ULR tips provide calibration lines which acts as a visual check to minimize any risk of errors during sample aspiration. Sterile AHN ULR tips are sterilized by radiation (Gamma or Beta irradiated) and available in an innovative hinged rack-system or in bags as sterile or non-sterile versions. All AHN ULR tips are naturally certified RNase, DNase and pyrogen free and fully autoclavable (121° C/15 min). Quality and precision Made in Germany. For use but not restricted to following pipettors: pipet4u Digital Micropipettes Eppendorf Reference Eppendorf Research Gilson Pipettors Brand Pipettors Labsystems Finnpipette Biohit Proline Pipettors Socorex Pipettors Nichiryo Pipettors MLA Pipettors Costar Pipettors Oxford Benchmate Pipettors Rainin EDP-2 Pipettors HTL-Pipettors