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 $16.53
  • Stopper #22 Glass Penny Head
    Part #: CG-3018-05

    $19.00 $16.15
  • Natural Rubber Stoppers, Two Holes, 1 lb box, Choose Size
    Part #: UN-RST0-H2

    $19.00 $16.53
  • Neoprene Stoppers, 1 lb box, Choose Size
    Part #: UN-NST000-S

    $31.00 $25.66
  • Cork Bottle Stoppers, Medium (Size #5 to #9), case/100
    Part #: UN-CST5

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

    $15.70
  • Natural Rubber Stoppers, One Hole, 1 lb box, Choose Size
    Part #: UN-RST00-H

    $19.00 $16.53
  • Stopper #13 Glass Penny Head
    Part #: CG-3018-02

    $15.00 $12.86
  • Stopper #16 Glass Penny Head
    Part #: CG-3018-03

    $16.00 $14.12
  • LDPE Stoppers For 15, 16 or 17mm Test Tubes, case/1000
    Part #: DL-276155

    $59.00 $47.07
  • WHEATON® Cap And Insert For BOD Bottles, case/50
    Part #: WH-227723

    $77.00 $61.92
  • 12mm Clear Polyethylene Flat Top Snap Plug, case/1000
    Part #: QP-256398

    $119.00 $100.12
  • 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
  • LDPE Stoppers For 11, 12 or 13mm Test Tubes, case/1000
    Part #: DL-276145

    $59.00 $50.00
  • Solid Rubber Stopper, Autoclavable, #0, Black, pack/12
    Part #: CG-3026-03

    $11.00 $9.75
  • Solid Rubber Stopper, Autoclavable, #00, Black, pack/24
    Part #: CG-3026-02

    $18.00 $16.05