3 inch Clear Glass Test Tube Test tubes with screw caps are suitable for transporting and growing cultures. These multipurpose screw cap test tubes are offered in convenient sizes to suit a variety of applications. The screw caps are designed to be leak-tight allowing the tubes to be used for storage or transport. These 16×160 mm PYREX round bottom glass test 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. Black Screw caps resist the effects of temperature and steam. These tubes have a black polypropylene GPI 38-400 threaded cap with a Polytetrafluorethylene (PTFE) liner. This is the best-branded test tube which is ideal for sample keeping, and laboratory use. Brand: Pyrex, Origin: China, Supplier: Medistorebd.com
