These clear polypropylene tips have a beveled end for superior accuracy and reproducibility in microliter volume ranges. The outer wall of the tips has flush calibration lines that eliminate hang-up on specimen tubes. Tips are graduated at 10, 20, 50, 100, and 200µL. Tips are free of RNase, DNase, and trace metals. Sterile tips are endotoxin-free. Tips and hinged racks are autoclavable.
Ordering Information: Pak Rak® Express refills contain pipet tips to fill 8x12 racks, without the packaging waste of standard tip boxes. Pak Rak Express refills require the Pak Rak system loader (see 30128-374 series), which dispenses tips quickly and easily from the refill pack into each rack, eliminating risk of contamination from hands or gloves.