Caps & Closures - Stoppers & Seals - Page 3 - LIGHT LABS | Laboratory Supplies & Equipment

ENDS OCT 30, 2026

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Wheaton
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sku: 224100-320

224100-320 Rubber Stopper, Sleeve, 30 mm, For Mouth ID 15 mm, Red, Case of 1,000 | Wheaton

MSRP:

Now: $1,262.24

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Wheaton
|
sku: 224100-161

224100-161 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 13 mm, Red, Case of 1,000 | Wheaton

MSRP:

Now: $776.34

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Wheaton
|
sku: 224100-160

224100-160 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 10 mm, Red, Case of 1,000 | Wheaton

MSRP:

Now: $909.19

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Wheaton
|
sku: 224100-060

224100-060 Rubber Stopper, Sleeve, 13 mm, For Mouth ID 7 mm, Red, Case of 1,000 | Wheaton

MSRP:

Now: $965.22

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Wheaton
|
sku: 224100-020

224100-020 Rubber Stopper, Sleeve, 11 mm, For Mouth ID 5 mm, Red, Case of 1,000 | Wheaton

MSRP:

Now: $351.39

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Wheaton
|
sku: 419356

419356 No. 8 Silicone Stopper, Case of 6 | Wheaton

MSRP:

Now: $126.89

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Wheaton
|
sku: 366022

366022 O-Ring, Silicone, 100 mm | Wheaton

MSRP:

Now: $50.42

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Wheaton
|
sku: 366012

366012 Sealing Ring, FKM, 100 mm | Wheaton

MSRP:

Now: $85.12

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Wheaton
|
sku: W224100-407

W224100-407 20 Mm Stopper, 3 Leg, Ultra Pure, Case of 1,000 | Wheaton

MSRP:

Now: $604.58

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Wheaton
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sku: W224100-202

W224100-202 20Mm Stpr,3 Leg Lyo(13X20)Gry Btyl,Slzd, Case of 1,000 | Wheaton

MSRP:

Now: $374.32

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MicroLiter
|
sku: 20-0025-L3

20-0025-L3 Septa 20Mm Butyl 3-Leg Stopper, Pack of 100 | MicroLiter

MSRP:

Now: $36.30

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Kimble
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sku: 953763-1201

953763-1201 Silicone Stoppers, Stopper Size 12 With 9/16" Hole | Kimble

MSRP:

Now: $51.61

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Wheaton
|
sku: 224100-320

224100-320 Rubber Stopper, Sleeve, 30 mm, For Mouth ID 15 mm, Red, Case of 1,000 | Wheaton

Sealing serum vials does not always call for a crimper. Sleeve stoppers have a fold-over skirt that wraps the outside of the vial neck, creating a secure closure on serum finish vials without a crimp...

MSRP:

Now: $1,262.24
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Wheaton
|
sku: 224100-161

224100-161 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 13 mm, Red, Case of 1,000 | Wheaton

Sealing serum vials does not always call for a crimper. Sleeve stoppers have a fold-over skirt that wraps the outside of the vial neck, creating a secure closure on serum finish vials without a crimp...

MSRP:

Now: $776.34
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Wheaton
|
sku: 224100-160

224100-160 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 10 mm, Red, Case of 1,000 | Wheaton

Sealing serum vials does not always call for a crimper. Sleeve stoppers have a fold-over skirt that wraps the outside of the vial neck, creating a secure closure on serum finish vials without a crimp...

MSRP:

Now: $909.19
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Wheaton
|
sku: 224100-060

224100-060 Rubber Stopper, Sleeve, 13 mm, For Mouth ID 7 mm, Red, Case of 1,000 | Wheaton

Sealing serum vials does not always call for a crimper. Sleeve stoppers have a fold-over skirt that wraps the outside of the vial neck, creating a secure closure on serum finish vials without a crimp...

MSRP:

Now: $965.22
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Wheaton
|
sku: 224100-020

224100-020 Rubber Stopper, Sleeve, 11 mm, For Mouth ID 5 mm, Red, Case of 1,000 | Wheaton

Sealing serum vials does not always call for a crimper. Sleeve stoppers have a fold-over skirt that wraps the outside of the vial neck, creating a secure closure on serum finish vials without a crimp...

MSRP:

Now: $351.39
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Wheaton
|
sku: 419356

419356 No. 8 Silicone Stopper, Case of 6 | Wheaton

A tight seal between filter holder and flask is essential for strong, steady vacuum. These No. 8 silicone stoppers seat a filtration support base in the neck of a filter flask, preventing air leaks...

MSRP:

Now: $126.89
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Wheaton
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sku: 366022

366022 O-Ring, Silicone, 100 mm | Wheaton

Flexible silicone O-rings provide an easy, reliable seal across a wide temperature range. This 100 mm O-ring is a simple replacement that keeps large-diameter glassware and equipment connections...

MSRP:

Now: $50.42
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Wheaton
|
sku: 366012

366012 Sealing Ring, FKM, 100 mm | Wheaton

A fresh, chemically resistant seal keeps large-diameter glass connections tight and leak free. This 100 mm sealing ring is made from FKM fluoroelastomer, a material valued for its resistance to many...

MSRP:

Now: $85.12
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Wheaton
|
sku: W224100-407

W224100-407 20 Mm Stopper, 3 Leg, Ultra Pure, Case of 1,000 | Wheaton

Get balanced venting and positioning during freeze drying. A three-leg stopper design sits evenly on the vial neck, helping maintain consistent vapor paths through the cycle and seating cleanly when...

MSRP:

Now: $604.58
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Wheaton
|
sku: W224100-202

W224100-202 20Mm Stpr,3 Leg Lyo(13X20)Gry Btyl,Slzd, Case of 1,000 | Wheaton

Get balanced venting and positioning during freeze drying. A three-leg stopper design sits evenly on the vial neck, helping maintain consistent vapor paths through the cycle and seating cleanly when...

MSRP:

Now: $374.32
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MicroLiter
|
sku: 20-0025-L3

20-0025-L3 Septa 20Mm Butyl 3-Leg Stopper, Pack of 100 | MicroLiter

Get balanced venting and positioning during freeze drying. A three-leg stopper design sits evenly on the vial neck, helping maintain consistent vapor paths through the cycle and seating cleanly when...

MSRP:

Now: $36.30
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Kimble
|
sku: 953763-1201

953763-1201 Silicone Stoppers, Stopper Size 12 With 9/16" Hole | Kimble

Silicone stoppers outlast ordinary rubber when they are autoclaved again and again, which makes these single-hole stoppers a smart choice for filter flasks and sterile setups. The pre-drilled hole...

MSRP:

Now: $51.61
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224100-320 Rubber Stopper, Sleeve, 30 mm, For Mouth ID 15 mm, Red, Case of 1,000 | Wheaton

224100-161 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 13 mm, Red, Case of 1,000 | Wheaton

224100-160 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 10 mm, Red, Case of 1,000 | Wheaton

224100-060 Rubber Stopper, Sleeve, 13 mm, For Mouth ID 7 mm, Red, Case of 1,000 | Wheaton

224100-020 Rubber Stopper, Sleeve, 11 mm, For Mouth ID 5 mm, Red, Case of 1,000 | Wheaton

419356 No. 8 Silicone Stopper, Case of 6 | Wheaton

366022 O-Ring, Silicone, 100 mm | Wheaton

366012 Sealing Ring, FKM, 100 mm | Wheaton

W224100-407 20 Mm Stopper, 3 Leg, Ultra Pure, Case of 1,000 | Wheaton

W224100-202 20Mm Stpr,3 Leg Lyo(13X20)Gry Btyl,Slzd, Case of 1,000 | Wheaton

20-0025-L3 Septa 20Mm Butyl 3-Leg Stopper, Pack of 100 | MicroLiter

953763-1201 Silicone Stoppers, Stopper Size 12 With 9/16" Hole | Kimble

sku: 224100-320

224100-320 Rubber Stopper, Sleeve, 30 mm, For Mouth ID 15 mm, Red, Case of 1,000 | Wheaton

sku: 224100-161

224100-161 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 13 mm, Red, Case of 1,000 | Wheaton

sku: 224100-160

224100-160 Rubber Stopper, Sleeve, 20 mm, For Mouth ID 10 mm, Red, Case of 1,000 | Wheaton

sku: 224100-060

224100-060 Rubber Stopper, Sleeve, 13 mm, For Mouth ID 7 mm, Red, Case of 1,000 | Wheaton

sku: 224100-020

224100-020 Rubber Stopper, Sleeve, 11 mm, For Mouth ID 5 mm, Red, Case of 1,000 | Wheaton

sku: 419356

419356 No. 8 Silicone Stopper, Case of 6 | Wheaton

sku: 366022

366022 O-Ring, Silicone, 100 mm | Wheaton

sku: 366012

366012 Sealing Ring, FKM, 100 mm | Wheaton

sku: W224100-407

W224100-407 20 Mm Stopper, 3 Leg, Ultra Pure, Case of 1,000 | Wheaton

sku: W224100-202

W224100-202 20Mm Stpr,3 Leg Lyo(13X20)Gry Btyl,Slzd, Case of 1,000 | Wheaton

sku: 20-0025-L3

20-0025-L3 Septa 20Mm Butyl 3-Leg Stopper, Pack of 100 | MicroLiter

sku: 953763-1201

953763-1201 Silicone Stoppers, Stopper Size 12 With 9/16" Hole | Kimble