Polyethylene caps

  • Stopper caps Stopper caps
  • Flat-top stopper caps Flat-top stopper caps
  • Two-position cap Two-position cap

    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.

    *also available non-sterile

    Catalog Number Description PKG
    300-4708-020

    Flat-top stopper caps for 8 mm tubes, natural

    1000
    300-4710-020

    Flat-top stopper caps for 10 mm tubes, natural

    1000
    300-4712-020

    Flat-top stopper caps for 12 mm tubes, natural

    1000
    300-2908-G20

    Stopper caps for 8 mm tubes, green

    1000
    300-2910-020

    Stopper caps for 10 mm tubes, natural

    1000
    300-2911-020

    Stopper caps for 11 mm tubes, natural

    1000
    300-2912-B20

    Stopper caps for 12 mm tubes, blue

    1000
    300-2912-E20

    Stopper caps for 12 mm tubes, orange

    1000
    300-2912-G20

    Stopper caps for 12 mm tubes, green

    1000
    300-2912-L20

    Stopper caps for 12 mm tubes, lavender

    1000
    300-2912-R20

    Stopper caps for 12 mm tubes, red

    1000
    300-2912-W20

    Stopper caps for 12 mm tubes, white

    1000
    300-2913-Y20

    Stopper caps for 13 mm tubes, yellow

    1000
    300-2916-R20

    Stopper caps for 16 mm tubes, red

    1000
    300-2917-B20

    Stopper caps for 17 mm tubes, blue

    1000
    222-3812-02S*

    Two-position caps for 12 mm polystyrene culture tubes, sterile, natural

    1000
    222-3812-02P*

    Two-position caps for 12 mm polypropylene culture tubes, sterile, natural

    1000
    222-3817-02S*

    Two-position caps for 17 mm polystyrene culture tubes, sterile, natural

    1000
    222-3817-02P*

    Two-position caps for 17 mm polypropylene culture tubes, sterile, natural

    1000
    300-1006-020

    Flat-top caps for automated analyzer sample cups, natural

    1000
    300-1006-B20

    Flat-top caps for automated analyzer sample cups, blue

    1000
    300-1006-R20

    Flat-top caps for automated analyzer sample cups, red

    1000
    300-1999-020

    Perforated flat-top caps for automated analyzer sample cups, natural

    1000