LLG low retention filter tips sterile. Certified free of DNase; RNase; suitable for microbiology. Guaranteed metal-free. Sterility acc. to EN 552/ISO 11137 and DIN EN 556. Filter pore size (effective) 4 to 6µm. Also liquid handling accuracy and precision are crucial to success in today's molecular biology laboratories; especially for DNA analysis and protein handling. A significant culprit of pipette inaccuracy is binding of sample. The LLG Filter tips reduce the binding; thus increasing sample delivery accuracy. Tests demonstrate that LLG Filter tips significantly reduce the amount of DNA and protein bound by the tip. Furthermore LLG Filter tips ''Premium'' offer a marked improvement over the best low retention technologies. Package contents 10 racks of 96.