Short cone centrifuge tubes. Detailed graduations. Wide mouth threaded opening (GL-32) with orange cap. Factory verified at 15 points. Extra markings at 0.05% and 0.15% (6 markings total below 0.5% (0.25 mL) marking).

Note: this is a special/custom tube due to the extra graduation marks at 0.05% (0.025 mL) and 0.15% (0.075 mL).