15mL Centrifuge Tube, Assorted Color Cap - Bag, Sterile (Case of 500)

• Assorted color cap tubes allow easily color coding of samples for quick identification, customization, and increased productivity. 
• Users report coding each color to a day of the week, a member of the lab, or a specific procedure. 
• Each case of assorted color tubes (230411A and 230421A) comes with a free plastic rack, and 4 bags of each individual color (red, yellow, green, blue, purple). 
• 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. 
• Plastic rack is manufactured from polypropylene and is autoclavable, reusable, and recyclable. 
• Chemically resistant to drips. 
• Design of bottom prevents racks from sticking/freezing to surfaces. 
• Widely spaced design catches drips and allows tubes to be retrieved more easily.