Labcon North America 15mL MetalFree™ Centrifuge Tubes with Flat Caps, 25 per Rack, Sterile 

Tube, Conical centrifuge; Labcon; MetalFree™; 15mL; Sterile; With attached flat screw caps; Certified free of metals to 1 part per billion of 21 common metals; Caps are pure natural polyethylene; Patented anti-smear writing surface; 3 color printed graduations and reverse reading scale; ATP, RNase/DNase and Endotoxin Free (non-pyrogenic); Validated Sterilization (ISO 11137) for use in Research and Medical labs; Polypropylene USP Class VI resin; Centrifuging to 17,000 x G; Freezable -80C; Autoclavable; Capacity: 15mL; Natural colorless caps; 25 tubes per rack/2 racks per pack/10 packs per case; 17mm W. 118mm H; Made in USA