Celltreat 230480 15mL Centrifuge Tube, Metal Free - Bag, Sterile, 500/pk

Validated to contain less than 1ppb of more than 30 trace metal elements, ensuring samples are free of contaminants
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
Easily refill reusable racks with tubes packed in bags