Stoppers

Flask stopper options include glass Pennyhead or machine stoppers, Autoclavable Rubber stoppers, Corks, Silicone Stoppers, and PTFE stoppers with color coded handle (choose color.) Glass stoppers are available in either clear or low actinic red stained glass.

  • Natural Rubber Stoppers, Solid, 1 Lb box, Choose Size
    Part #: UN-RST000-S

    $19.00 $16.58
  • Natural Rubber Stoppers, Two Holes, 1 Lb box, Choose Size
    Part #: UN-RST0-H2

    $19.00 $16.58
  • Neoprene Stoppers, 1 Lb box, Choose Size
    Part #: UN-NST000-S

    $31.00 $26.78
  • Cork Bottle Stoppers, Medium (Size #5 to #9), case/100
    Part #: UN-CST5

    $24.03
  • Cork Bottle Stoppers, Small (Size #000 to #4), case/100
    Part #: UN-CST000

    $15.70
  • Stopper #22 Glass Penny Head
    Part #: CG-3018-05

    $19.00 $15.34
  • Natural Rubber Stoppers, One Hole, 1 Lb box, Choose Size
    Part #: UN-RST00-H

    $19.00 $16.58
  • Stopper #13 Glass Penny Head
    Part #: CG-3018-02

    $15.00 $12.22
  • Stopper #16 Glass Penny Head
    Part #: CG-3018-03

    $16.00 $13.41
  • Stoppers For Test Tubes, 15, 16 or 17mm, case/1000
    Part #: DL-276155

    $59.00 $48.62
  • 12mm Clear Polyethylene Flat Top Snap Plug, case/1000
    Part #: QP-256398

    $119.00 $112.40
  • 20mm Ultra Pure Igloo Style Stopper, Siliconized, case/1000
    Part #: WH-W224100-408

    $335.00 $267.51
  • BOD Bottle Stopper, Glass Pennyhead, case/12
    Part #: WH-227672

    $64.00 $51.16
  • BOD Bottle Stopper, Glass Robotic, case/12
    Part #: WH-227670

    $66.00 $52.93
  • Cap And Insert For BOD Bottle, case/50
    Part #: WH-227723

    $77.00 $61.72
  • Cork Bottle Stoppers, Large (Size #10 to #14), case/100
    Part #: UN-CST10

    $93.52
  • Cork Bottle Stoppers, XL (Size #15 to #20), case/100
    Part #: UN-CST15

    $146.00 $140.24