UVSafe® Conical centrifuge tube. 50 mL. Sterile. With attached plug style caps. Block 100% of UVA, UVB and UVC light but passes visible light. White printed graduations. 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 12,500 x G. Freezable to -80C. Autoclavable tubes. Capacity: 50 mL. Teal color caps. 25 tubes per low waste fiber rack/20 racks per case. 29 mm W. 115 mm H. Made in USA.