Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
WHEATON Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 18.8 mm Top Dia - Synthetic Rubber Stoppers
WHEATONSynthetic Rubber Stoppers

WHEATON Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 18.8 mm Top Dia

The WHEATON Bromobutyl Stopper (SKU 408VD6, MPN W988006-S) is a synthetic rubber stopper in Stopper Size 20, constructed from bromobutyl material in a gray color. It features a 13.3 mm bottom diameter, 18.8 mm top…

SKU 3G-OTH-382730

Brand
WHEATON
Item
Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 18.8 mm Top Dia
Category
Synthetic Rubber Stoppers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

WHEATON
Manufacturer Part Number
W988006-S
Type
Gray
Material
Bromobutyl
Color
Gray
Top Dia
18.8 mm
Standards
EP 2.6.1
Bottom Dia
13.3 mm
Overall Ht
8 mm
Stopper Size
20
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The WHEATON Bromobutyl Stopper (SKU 408VD6, MPN W988006-S) is a synthetic rubber stopper in Stopper Size 20, constructed from bromobutyl material in a gray color. It features a 13.3 mm bottom diameter, 18.8 mm top diameter, and 8 mm overall height, and complies with EP 2.6.1 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, providing a gas-tight closure for sterile or sensitive contents. It is commonly applied in drug packaging, vaccine storage, and biotech research where material compatibility and EP 2.6.1 compliance are required.

What are the specifications of the WHEATON Bromobutyl Stopper?

This WHEATON stopper is Stopper Size 20, made of gray bromobutyl rubber. It has a 13.3 mm bottom diameter, 18.8 mm top diameter, and 8 mm overall height. It meets EP 2.6.1 standards for biological safety. The manufacturer part number is W988006-S.

Where to buy WHEATON Bromobutyl Stoppers worldwide?

3G Electric supplies WHEATON Bromobutyl Stoppers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the W988006-S stopper.

How to select the correct WHEATON stopper size?

Select the stopper size based on your vial neck finish. The WHEATON Stopper Size 20 fits standard 20 mm vial openings. Verify the top diameter (18.8 mm) and bottom diameter (13.3 mm) match your container. For sterile applications, ensure the bromobutyl material and EP 2.6.1 compliance meet your requirements.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
Stopper: Bromobutyl, 13 Stopper Size, 7.82 mm Bottom Dia, 12.7 mm Top Dia, 6.25 mm Overall Ht, Gray (MPN W988004-S). Key specifications — Standards: EP 2.6.1; Brand: WHEATON; Color: Gray; Stopper Size: 13; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 13 Stopper Size, 7.82 mm Bottom Dia, 12.7 mm Top Dia, 6.25 mm Overall Ht, Gray (MPN W988004-S). Key specifications — Standards: EP 2.6.1; Brand: WHEATON; Color: Gray; Stopper Size: 13; Material: Bromobutyl.
Stopper: Bromobutyl, 20 Stopper Size, 13.2 mm Bottom Dia, 20 mm Top Dia, 14.2 mm Overall Ht, Gray (MPN W224100-407). Key specifications — Standards: EP 3.2.1; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 20 Stopper Size, 13.2 mm Bottom Dia, 20 mm Top Dia, 14.2 mm Overall Ht, Gray (MPN W224100-407). Key specifications — Standards: EP 3.2.1; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 20 mm Top Dia, 12.6 mm Overall Ht, Gray (MPN 73828A-21). Key specifications — Standards: EP 3.2.1; Brand: KIMBLE; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
KIMBLE
Stopper: Bromobutyl, 20 Stopper Size, 13.3 mm Bottom Dia, 20 mm Top Dia, 12.6 mm Overall Ht, Gray (MPN 73828A-21). Key specifications — Standards: EP 3.2.1; Brand: KIMBLE; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
Stopper: Bromobutyl, 13 Stopper Size, 7.4 mm Bottom Dia, 13 mm Top Dia, 10.3 mm Overall Ht, Gray (MPN 73828-13). Key specifications — Standards: EP 3.2.1; Brand: KIMBLE; Color: Gray; Stopper Size: 13; Material: Bromobutyl.
KIMBLE
Stopper: Bromobutyl, 13 Stopper Size, 7.4 mm Bottom Dia, 13 mm Top Dia, 10.3 mm Overall Ht, Gray (MPN 73828-13). Key specifications — Standards: EP 3.2.1; Brand: KIMBLE; Color: Gray; Stopper Size: 13; Material: Bromobutyl.
Stopper: Chlorobutyl, 20 Stopper Size, 7.6 mm Bottom Dia, 20 mm Top Dia, 8.5 mm Overall Ht, Gray (MPN 73827-21). Key specifications — Standards: None; Brand: KIMBLE; Color: Gray; Stopper Size: 20; Material: Chlorobutyl.
KIMBLE
Stopper: Chlorobutyl, 20 Stopper Size, 7.6 mm Bottom Dia, 20 mm Top Dia, 8.5 mm Overall Ht, Gray (MPN 73827-21). Key specifications — Standards: None; Brand: KIMBLE; Color: Gray; Stopper Size: 20; Material: Chlorobutyl.
Stopper: Chlorobutyl, 20 Stopper Size, 7.6 mm Bottom Dia, 20 mm Top Dia, 6.9 mm Overall Ht, Gray (MPN 73811T-21). Key specifications — Standards: USP <381>; Brand: KIMBLE; Color: Gray; Stopper Size: 20; Material: Chlorobutyl.
KIMBLE
Stopper: Chlorobutyl, 20 Stopper Size, 7.6 mm Bottom Dia, 20 mm Top Dia, 6.9 mm Overall Ht, Gray (MPN 73811T-21). Key specifications — Standards: USP <381>; Brand: KIMBLE; Color: Gray; Stopper Size: 20; Material: Chlorobutyl.

More from WHEATON

View all WHEATON parts →
Stopper: Bromobutyl, 20 Stopper Size, 13.4 mm Bottom Dia, 18.8 mm Top Dia, 11.8 mm Overall Ht, Gray (MPN W224100-408). Key specifications — Standards: USP <381>; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 20 Stopper Size, 13.4 mm Bottom Dia, 18.8 mm Top Dia, 11.8 mm Overall Ht, Gray (MPN W224100-408). Key specifications — Standards: USP <381>; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
Stopper: Silicone, 20 Stopper Size, 13.1 mm Bottom Dia, 20 mm Top Dia, 8.38 mm Overall Ht, Colorless (MPN 224100-178). Key specifications — Standards: EP 3.2.1; Brand: WHEATON; Color: Colorless; Stopper Size: 20; Material: Silicone.
WHEATON
Stopper: Silicone, 20 Stopper Size, 13.1 mm Bottom Dia, 20 mm Top Dia, 8.38 mm Overall Ht, Colorless (MPN 224100-178). Key specifications — Standards: EP 3.2.1; Brand: WHEATON; Color: Colorless; Stopper Size: 20; Material: Silicone.
Stopper: Bromobutyl, 20 Stopper Size, 13.4 mm Bottom Dia, 18.75 mm Top Dia, 13.3 mm Overall Ht, Gray (MPN W224100-406). Key specifications — Standards: USP <381>; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 20 Stopper Size, 13.4 mm Bottom Dia, 18.75 mm Top Dia, 13.3 mm Overall Ht, Gray (MPN W224100-406). Key specifications — Standards: USP <381>; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
Stopper: Bromobutyl, 20 Stopper Size, Gray, 0 Holes, 125 Stoppers Included (MPN W988007-S). Key specifications — Standards: USP <381>; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 20 Stopper Size, Gray, 0 Holes, 125 Stoppers Included (MPN W988007-S). Key specifications — Standards: USP <381>; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
Stopper: Bromobutyl, 13 Stopper Size, 7.6 mm Bottom Dia, 12.9 mm Top Dia, 6.25 mm Overall Ht, Gray (MPN W988003-S). Key specifications — Standards: EP 3.2.9; Brand: WHEATON; Color: Gray; Stopper Size: 13; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 13 Stopper Size, 7.6 mm Bottom Dia, 12.9 mm Top Dia, 6.25 mm Overall Ht, Gray (MPN W988003-S). Key specifications — Standards: EP 3.2.9; Brand: WHEATON; Color: Gray; Stopper Size: 13; Material: Bromobutyl.
Stopper: Bromobutyl, 20 Stopper Size, 13.27 mm Bottom Dia, 19 mm Top Dia, 11.8 mm Overall Ht, Gray (MPN W988008-S). Key specifications — Standards: EP 2.9.19; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 20 Stopper Size, 13.27 mm Bottom Dia, 19 mm Top Dia, 11.8 mm Overall Ht, Gray (MPN W988008-S). Key specifications — Standards: EP 2.9.19; Brand: WHEATON; Color: Gray; Stopper Size: 20; Material: Bromobutyl.
Stopper: Silicone, 20 Stopper Size, 13.1 mm Bottom Dia, 20 mm Top Dia, 8.38 mm Overall Ht, Colorless (MPN 224100-178). Key specifications — Standards: EP 3.2.1; Brand: WHEATON; Color: Colorless; Stopper Size: 20; Material: Silicone.
WHEATON
Stopper: Silicone, 20 Stopper Size, 13.1 mm Bottom Dia, 20 mm Top Dia, 8.38 mm Overall Ht, Colorless (MPN 224100-178). Key specifications — Standards: EP 3.2.1; Brand: WHEATON; Color: Colorless; Stopper Size: 20; Material: Silicone.
Stopper: Bromobutyl, 13 Stopper Size, 7.6 mm Bottom Dia, 12.5 mm Top Dia, 8.9 mm Overall Ht, Gray (MPN W988005-S). Key specifications — Standards: USP <85>; Brand: WHEATON; Color: Gray; Stopper Size: 13; Material: Bromobutyl.
WHEATON
Stopper: Bromobutyl, 13 Stopper Size, 7.6 mm Bottom Dia, 12.5 mm Top Dia, 8.9 mm Overall Ht, Gray (MPN W988005-S). Key specifications — Standards: USP <85>; Brand: WHEATON; Color: Gray; Stopper Size: 13; Material: Bromobutyl.