Triple Guard Barrier Tips are perfect for saving bench space in laboratory environments. The Triple Guard Barrier Tips fit 20ul, 100ul, and 200ul pipettes. Typically, you would need a different barrier tip for each of these pipettes, but not with the Triple Guard. These tips are sterile, RNase/DNase/Pyrogen/PCR inhibitor free, and feature an inert hydrophobic barrier. Save space and money with our Triple Guard Barrier Tips.