• Made of 99.9% virgin Prolypropylene• Filter Tips fit all single and multi channel Pipettors• Filters are free of particles, starch and surfactants.• Low Retention allows complete retrieval of precious samples• Use finest porous plastic filter membrane available.• Certified Free of Rnase, Dnase and pyrogens.• Volume: 0.5-20µl Natural Racked Low Retention• Pre-Sterilized.