15mL Centrifuge Tube - Paperboard Rack, Sterile-500Units

25/Paperboard Rack with 2 Racks/Bag--Graduations are printed in bold, easy-to-read black ink and are accurate to +/-2% Large white marking area provides excellent contrast for identification Easy to write on flat surface polyethylene (HDPE) caps feature integrated leak-proof seal Tubes include graduations molded into the conical bottom, ideal for pellet viewing and small volume quantification Convenient zip-closure bag is a practical alternative to folding and taping opened bags Paperboard rack is a recyclable, fold-flat alternative to bulky foam racks