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WHEATON Stopper: Bromobutyl, 20 Stopper Size, 13.4 mm Bottom Dia, 18.75 mm Top Dia - Synthetic Rubber Stoppers
WHEATONSynthetic Rubber Stoppers

WHEATON Stopper: Bromobutyl, 20 Stopper Size, 13.4 mm Bottom Dia, 18.75 mm Top Dia

The WHEATON Stopper: Bromobutyl is a synthetic rubber stopper in Size 20, made from gray bromobutyl material. It features a 13.4 mm bottom diameter, 18.75 mm top diameter, and 13.3 mm overall height. This stopper…

SKU 3G-OTH-382732

Also listed as: W224100406 · W224100 406

Brand
WHEATON
Item
Stopper: Bromobutyl, 20 Stopper Size, 13.4 mm Bottom Dia, 18.75 mm Top Dia
Category
Synthetic Rubber Stoppers
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

WHEATON
Manufacturer Part Number
W224100-406
Type
Gray
Material
Bromobutyl
Color
Gray
Top Dia
18.75 mm
Standards
USP <381>
Bottom Dia
13.4 mm
Overall Ht
13.3 mm
Stopper Size
20

Technical Documents

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WHEATON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WHEATON Stopper: Bromobutyl is a synthetic rubber stopper in Size 20, made from gray bromobutyl material. It features a 13.4 mm bottom diameter, 18.75 mm top diameter, and 13.3 mm overall height. This stopper complies with USP <381> standards.

Frequently Asked Questions

What is the WHEATON bromobutyl stopper used for?

The WHEATON bromobutyl stopper is used to seal pharmaceutical vials and laboratory containers. Its synthetic rubber formulation provides low gas permeability and high chemical resistance, making it suitable for sterile drug packaging and sensitive reagent storage.

What are the specifications of the WHEATON stopper W224100-406?

The WHEATON stopper W224100-406 is a Size 20 bromobutyl stopper in gray. It has a top diameter of 18.75 mm, bottom diameter of 13.4 mm, and overall height of 13.3 mm. It complies with USP <381> standards for pharmaceutical closures.

Where to buy WHEATON bromobutyl stoppers worldwide?

3G Electric supplies WHEATON bromobutyl stoppers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these USP <381> compliant stoppers to your facility, regardless of location.

How to select the correct WHEATON stopper size for a vial?

Select the WHEATON stopper size by matching the stopper's top and bottom diameters to your vial's neck dimensions. For the Size 20 stopper, ensure the vial opening accommodates an 18.75 mm top and 13.4 mm bottom diameter. Always verify compatibility with your container's finish.

Used in

Common applications for WHEATON
Environmental testing laboratories — WHEATON BOD bottles (SKU 48H604) for biochemical oxygen demand analysis of water samples.
Pharmaceutical compounding — WHEATON rectangular glass lab bottles (SKU 48H782) for storing liquid reagents and intermediates.
Cryogenic sample storage — WHEATON fiberboard cold storage boxes (SKU 6EMW3) for organizing vials in liquid nitrogen freezers.
Analytical chemistry — WHEATON glass scintillation vials (SKU 48H848) for liquid scintillation counting of radioactive samples.
Industrial quality control — WHEATON bottle top dispensers (SKU 23NC18) for dispensing precise volumes of solvents or acids.
Laboratory organization — WHEATON paper index cards (SKU 49WE10) for labeling and tracking samples in storage racks.

WHEATON Products

3G Electric supplies WHEATON synthetic rubber stoppers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Stopper: Bromobutyl, 13 Stopper Size, 7.6 mm Bottom Dia, 12.5 mm Top Dia, 8.9 mm Overall Ht, Gray (MPN W988005-S)
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Stopper: Bromobutyl, 13 Stopper Size, 7.6 mm Bottom Dia, 12.5 mm Top Dia, 8.9 mm Overall Ht, Gray (MPN W988005-S)
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Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 18.8 mm Top Dia, 8 mm Overall Ht, Gray (MPN W988006-S)
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Stopper: Bromobutyl, 13 Stopper Size, 7.82 mm Bottom Dia, 12.7 mm Top Dia, 6.25 mm Overall Ht, Gray (MPN W988004-S)
Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 20 mm Top Dia, 12.6 mm Overall Ht, Gray (MPN 73828A-21)
KIMBLE
Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 20 mm Top Dia, 12.6 mm Overall Ht, Gray (MPN 73828A-21)
Stopper: Bromobutyl, 13 Stopper Size, 7.4 mm Bottom Dia, 13 mm Top Dia, 10.3 mm Overall Ht, Gray (MPN 73828-13)
KIMBLE
Stopper: Bromobutyl, 13 Stopper Size, 7.4 mm Bottom Dia, 13 mm Top Dia, 10.3 mm Overall Ht, Gray (MPN 73828-13)
Stopper: Chlorobutyl, 20 Stopper Size, 7.6 mm Bottom Dia, 20 mm Top Dia, 6.9 mm Overall Ht, Gray (MPN 73811T-21)
KIMBLE
Stopper: Chlorobutyl, 20 Stopper Size, 7.6 mm Bottom Dia, 20 mm Top Dia, 6.9 mm Overall Ht, Gray (MPN 73811T-21)

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