- great fit for culture tubes, test tubes or sample cups
For test tubes. Precision-molded stopper caps are available for every size of Evergreen test tube. Choose from either standard caps (300-2900 series) or our flat-top style (300-4700 series). 300-2900 series caps for 12 mm tubes are available in six colors. For culture tubes. Overfitting caps for use with sterile culture tubes have two positions: loose for aerobic culturing and tight for anaerobic culturing and leakproof sealing. Caps for culture tubes are gamma irradiated for sterility. For sample cups. Perforated caps help minimize variation caused by evaporation during processing. Non-perforated caps are appropriate for short-term storage.
$95.96
|