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UNITED SCIENTIFIC SUPPLIES Stopper: Cork, 18 Stopper Size, 31 mm Bottom Dia, 38 mm Top Dia, 38 mm Overall Ht

The UNITED SCIENTIFIC SUPPLIES Stopper: Cork (SKU CST18, MPN CST18) is a beige cork stopper with a Stopper Size of 18. It has a bottom diameter of 31 mm, a top diameter of 38 mm, and an overall height of 38 mm, with…

SKU 3G-OTH-385482

Also listed as: CST 18 · CST-18

Brand
UNITED SCIENTIFIC SUPPLIES
Item
Stopper: Cork, 18 Stopper Size, 31 mm Bottom Dia, 38 mm Top Dia, 38 mm Overall Ht
Category
Cork Stoppers
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

UNITED SCIENTIFIC SUPPLIES
Manufacturer Part Number
CST18
Type
Beige
Material
Cork
Color
Beige
Holes
0
Top Dia
38 mm
Bottom Dia
31 mm
Overall Ht
38 mm
Stopper Size
18

Technical Documents

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UNITED SCIENTIFIC SUPPLIES Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The UNITED SCIENTIFIC SUPPLIES Stopper: Cork (SKU CST18, MPN CST18) is a beige cork stopper with a Stopper Size of 18. It has a bottom diameter of 31 mm, a top diameter of 38 mm, and an overall height of 38 mm, with 0 holes.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a UNITED SCIENTIFIC SUPPLIES cork stopper used for?

A UNITED SCIENTIFIC SUPPLIES cork stopper (MPN CST18) is used to seal laboratory glassware such as flasks, test tubes, and bottles. Its natural cork material provides a tight, inert seal for storing chemicals, samples, or reagents. It is commonly used in educational, research, and industrial labs.

What are the specifications of the UNITED SCIENTIFIC SUPPLIES CST18 cork stopper?

The CST18 cork stopper from UNITED SCIENTIFIC SUPPLIES INC has a Stopper Size of 18, a bottom diameter of 31 mm, a top diameter of 38 mm, and an overall height of 38 mm. It is beige in color, made of cork, and has 0 holes. The manufacturer part number is CST18.

Where to buy UNITED SCIENTIFIC SUPPLIES cork stoppers worldwide?

You can source UNITED SCIENTIFIC SUPPLIES cork stoppers worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the CST18 or other stopper sizes.

How to select the right cork stopper size for a flask?

To select the correct cork stopper, measure the inner diameter of your flask neck. The stopper's bottom diameter should be slightly larger than the neck opening for a snug fit. For the CST18, the bottom diameter is 31 mm. Always verify compatibility with your glassware before ordering.

UNITED SCIENTIFIC SUPPLIES Products

3G Electric supplies UNITED SCIENTIFIC SUPPLIES cork 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
UNITED SCIENTIFIC SUPPLIES
UNITED SCIENTIFIC SUPPLIES
Stopper: Cork, 19 Stopper Size, 33 mm Bottom Dia, 40 mm Top Dia, 38 mm Overall Ht, Beige, 0 Holes (MPN CST19)
UNITED SCIENTIFIC SUPPLIES
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Stopper: Cork, 16 Stopper Size, 27 mm Bottom Dia, 35 mm Top Dia, 38 mm Overall Ht, Beige, 0 Holes (MPN CST16)
UNITED SCIENTIFIC SUPPLIES
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Stopper: Cork, 17 Stopper Size, 30 mm Bottom Dia, 36 mm Top Dia, 38 mm Overall Ht, Beige, 0 Holes (MPN CST17)
UNITED SCIENTIFIC SUPPLIES
UNITED SCIENTIFIC SUPPLIES
Stopper: Cork, 20 Stopper Size, 34 mm Bottom Dia, 41 mm Top Dia, 38 mm Overall Ht, Beige, 0 Holes (MPN CST20)
UNITED SCIENTIFIC SUPPLIES
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Stopper: Cork, 14 Stopper Size, 25 mm Bottom Dia, 32 mm Top Dia, 31 mm Overall Ht, Beige, 0 Holes (MPN CST14)
UNITED SCIENTIFIC SUPPLIES
UNITED SCIENTIFIC SUPPLIES
Stopper: Cork, 11 Stopper Size, 21 mm Bottom Dia, 27 mm Top Dia, 31 mm Overall Ht, Beige, 0 Holes (MPN CST11)

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Stopper: Cork, 12 Stopper Size, 22 mm Bottom Dia, 29 mm Top Dia, 31 mm Overall Ht, Beige, 0 Holes (MPN CST12)
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Stopper: Cork, 4 Stopper Size, 11 mm Bottom Dia, 16 mm Top Dia, 20 mm Overall Ht, Beige, 0 Holes (MPN CST4)
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Stopper: Cork, 8 Stopper Size, 17 mm Bottom Dia, 22 mm Top Dia, 27 mm Overall Ht, Beige, 0 Holes (MPN CST8)
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Stopper: Cork, 13 Stopper Size, 24 mm Bottom Dia, 30 mm Top Dia, 31 mm Overall Ht, Beige, 0 Holes (MPN CST13)
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Stopper: Cork, 15 Stopper Size, 27 mm Bottom Dia, 33 mm Top Dia, 31 mm Overall Ht, Beige, 0 Holes (MPN CST15)
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Stopper: Cork, 7 Stopper Size, 15 mm Bottom Dia, 21 mm Top Dia, 25 mm Overall Ht, Beige, 0 Holes (MPN CST7)