PYREX®, borosilicate glass, round bottom, with screw cap.

• Excellent chemical resistance
• High temperature resistance
• Minimal thermal expansion, giving relatively high resistance to temperature changes

These 50 ml round bottom centrifuge tubes are useful for the handling of sputum specimens. Digestion, shaking, neutralizing and centrifuging can be performed in one container. They are also useful for other clinical and microbiological tests. Screw caps resist the effects of temperature and steam. The 50 ml tube has a black phenolic GPI 24-410 threaded cap with a glued-in, white rubber liner.