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Home  >  Laboratory Supplies & Consumables > Stoppers

Stoppers

Stoppers

Rubber stoppers are a miracle for lab workers. But there are some factors you should consider when using rubber stoppers in lab applications. When using these items in combination with glass tubing or thermometers you have to be mindful that cuts from the glass can occur. More often than not, these cuts happen when people try to shove a rubber stopper into narrow openings on glass containers. They can also occur when workers have to push glass tubing into the hole of a stopper. Avoid common mistakes that occur doing this process—including cuts, breakage and contamination. Make sure there is a protective layer between your hands and the glass tubing or thermometer. This prevents any slipping mishaps as glass is notoriously tough to grip. A cloth towel is great because it can protect you from injury. If you’re inserting the tube into the stopper be sure to lubricate the glass tube. Also remember that glass tubing is less flexible than rubber stoppers. Glass breaks, rubber bends so forcing the glass tubing will only result in shattered glass. In the end patience may be the best virtue for paring rubber stoppers with glass tubing.
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Representative photo only Black rubber stopper size 16

Black rubber stopper, size 16

Product Type Stoppers,Standard size number 16,Top OD mm 127,Color Black
EW-62990-52
In stock.
$49.00 USD/PACKAGE of 1

Qty:
Representative photo only Black rubber stopper size 10 1 2

Black rubber stopper, size 10 1/2

Product Type Stoppers,Standard size number 10.5,Top OD mm 53,Color Black
EW-62990-36
In stock.
$37.00 USD/PACKAGE of 7

Qty:
EW-06073-40 PTFE joint sleeve, 10/30 shown

PTFE joint sleeve, 24/40

Product Type Joint Sleeves,Material PTFE
EW-06073-40
In stock.
$35.00 USD/PACKAGE of 6

Qty:
Representative photo only High purity silicone stopper size 4 27D

High-purity silicone stopper, size 4 (27D)

Product Type Stoppers,Standard size number 4,Top OD mm 27,Color Translucent
EW-62994-18
In stock.
$31.50 USD/PACKAGE of 10

Qty:
Representative photo only Black rubber stopper size 9 1 2

Black rubber stopper, size 9 1/2

Product Type Stoppers,Standard size number 9.5,Top OD mm 46,Color Black
EW-62990-32
In stock.
$35.50 USD/PACKAGE of 9

Qty:
EW-06298-10 Silicone stopper, size 5

Silicone stopper, size 5

Product Type Stoppers,Standard size number 5,Top OD mm 30,Color White
EW-06298-10
In stock.
$30.75 USD/BAG of 10

Qty:
Representative photo only Black rubber stopper size 15

Black rubber stopper, size 15

Product Type Stoppers,Standard size number 15,Top OD mm 103,Color Black
EW-62990-50
In stock.
$47.00 USD/PACKAGE of 1

Qty:
Representative photo only Black rubber stopper size 8

Black rubber stopper, size 8

Product Type Stoppers,Standard size number 8,Top OD mm 41,Color Black
EW-62990-26
In stock.
$35.50 USD/PACKAGE of 12

Qty:
Representative photo only High purity silicone stopper size 10 49D

High-purity silicone stopper, size 10 (49D)

Product Type Stoppers,Standard size number 10,Top OD mm 49,Color Translucent
EW-62994-32
In stock.
$21.50 USD/PACKAGE of 2

Qty:
Representative photo only Cole Parmer Twistit black rubber stopper size 3

Cole-Parmer Twistit™ black rubber stopper, size 3

Product Type Stoppers,Standard size number 3,Top OD mm 24,Color Black
EW-62992-00
In stock.
$30.50 USD/PACKAGE of 50

Qty:
EW-06139-85 Scienceware<small><sup>&reg;</sup></small> stirrer bearing of PTFE

Scienceware stirrer bearing of PTFE

Product Type Stoppers and Adapters,Material PTFE,Brand Scienceware
EW-06139-85
In stock.
$99.00 USD/EACH

Qty:
EW-06298-06 Silicone stopper, size 2

Silicone stopper, size 2

Product Type Stoppers,Standard size number 2,Top OD mm 20,Color Pink
EW-06298-06
In stock.
$33.25 USD/BAG of 20

Qty:
EW-06298-08 Silicone stopper, size 4

Silicone stopper, size 4

Product Type Stoppers,Standard size number 4,Top OD mm 25,Color Blue
EW-06298-08
In stock.
$48.25 USD/BAG of 20

Qty:
EW-06298-00 Silicone stopper, size 000

Silicone stopper, size 000

Product Type Stoppers,Standard size number 000,Top OD mm 12,Color White
EW-06298-00
In stock.
$56.50 USD/BAG of 50

Qty:
Representative photo only Black rubber stopper size 7

Black rubber stopper, size 7

Product Type Stoppers,Standard size number 7,Top OD mm 37,Color Black
EW-62990-22
In stock.
$34.50 USD/PACKAGE of 15

Qty:
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