• Low-binding virgin polypropylene tubes, for reaction-free sample storage • Polished tubes for excellent transparency and visual control • Outer F-bottom for good legibility, internal U-bot tom for low dead volum • Certified free from RNase/DNase, human DNA, endotoxins and ATP • Manufactured under ISO 8 clean room conditions • Tube bottoms laser-labelled with data matrix code (2D), legible with all standard scanners • ClearLine® 2D tubes are available without cap or precapped with blue internal/external thread screw cap, coloured screw caps and cap mats are also available separately • Tubes available sterile or non-sterile, racked or bulked