These polypropylene tips are designed for fixed and variable volume pipettors that are equipped with a tip-ejector function. Tips have a ribbed top and beveled end to ensure a precise fit and accurate volume delivery. Low-binding tips feature a modified polypropylene resin that limits the adhesion of cells, rDNA, and other viscous materials. All tips are RNase- and DNase-free. Low-binding tips are also free of protease and human DNA. Sterile tips are endotoxin-free. Tips and hinged racks are fully autoclavable to 122°C (252°F).
Ordering Information: Use Pak Rak® and Pak Rak Express refills in the Pak Rak system loader (see 30128-374 series) to reload pipet tip racks quickly and easily. Refills have greatly reduced packaging waste compared to standard tip boxes. Each Pak Rak refill contains one rack and tips to fill additional 8x12 racks. Pak Rak Express refills include only the tips, reducing waste even more.