Company | Ampoules | Bottles | Tubes | Vials | Closures | Lab Glassware | Technical Data | Enquiry Borosilicate Glass Culture Tubes These borosilicate tubes have excellent chemical resistance and ideal for laboratory use due to their neutrality, impermeability and extra strength. As the coefficient of linear expansion of these tubes is low, these tubes can withstand high temperatures. Dimensional specifications of these tubes are rigidly controlled for uniform length and wall thickness. These tubes feature smooth wall with no irregularities and fire-polished tops to eliminate rough edges. These tubes come in round or flat bottom, with or without Lip/Rim, with or without screw cap. Available in all regular sizes and can be custom produced as per required specifications. Plastic Culture Tubes These round bottom tubes are available in either crystal-clear polystyrene or chemical-resistant polypropylene (PP). Choose capless, screw cap or dual-position snap cap. Sterilized by gamma irradiation. Available in all regular sizes.