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UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 9 Stopper Size, 37 mm Bottom Dia, 45 mm Top Dia, 25 mm Overall Ht - Rubber Stoppers

UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 9 Stopper Size, 37 mm Bottom Dia, 45 mm Top Dia, 25 mm Overall Ht

The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a size 9, featuring a 37 mm bottom diameter, 45 mm top diameter, and 25 mm overall height. It includes 2 holes and is manufactured by…

SKU 3G-OTH-381376

Also listed as: RST9H2 · RST9 H2

Brand
UNITED SCIENTIFIC SUPPLIES
Item
Stopper: Rubber, 9 Stopper Size, 37 mm Bottom Dia, 45 mm Top Dia, 25 mm Overall Ht
Category
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

UNITED SCIENTIFIC SUPPLIES
Manufacturer Part Number
RST9-H2
Type
Black
Material
Rubber
Color
Black
Holes
2
Top Dia
45 mm
Bottom Dia
37 mm
Overall Ht
25 mm
Stopper Size
9

Technical Documents

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

Product Description

The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a size 9, featuring a 37 mm bottom diameter, 45 mm top diameter, and 25 mm overall height. It includes 2 holes and is manufactured by UNITED SCIENTIFIC SUPPLIES INC under part number RST9-H2.

Frequently Asked Questions

What is a UNITED SCIENTIFIC SUPPLIES rubber stopper size 9 with 2 holes used for?

This black rubber stopper (size 9, 45 mm top dia, 37 mm bottom dia, 25 mm height) seals laboratory flasks, test tubes, or bottles. The 2 holes allow insertion of glass tubing, thermometers, or probes for gas transfer or vacuum applications in chemistry and biology labs.

What are the specifications of the UNITED SCIENTIFIC SUPPLIES RST9-H2 rubber stopper?

The RST9-H2 is a size 9 black rubber stopper from UNITED SCIENTIFIC SUPPLIES INC. It has a 45 mm top diameter, 37 mm bottom diameter, 25 mm overall height, and 2 holes. Material is rubber. It is designed for standard laboratory sealing and access.

Where to buy UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide?

3G Electric supplies and delivers the UNITED SCIENTIFIC SUPPLIES RST9-H2 rubber stopper worldwide. We handle full logistics and customs clearance for global orders, ensuring you receive genuine lab consumables for your facility.

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

Measure the inside diameter of your flask neck. The stopper's bottom diameter (37 mm for size 9) should be slightly larger than the neck opening to create a tight seal. For multiple inserts, choose a stopper with the correct number of holes (2 holes for this model).

UNITED SCIENTIFIC SUPPLIES Products

3G Electric supplies UNITED SCIENTIFIC SUPPLIES 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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Cross-referenced by specification & description
Stopper: Rubber, 9 1/2 Stopper Size, 38 mm Bottom Dia, 46 mm Top Dia, 25 mm Overall Ht, Black (MPN RST9A-H2)
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Stopper: Rubber, 9 1/2 Stopper Size, 38 mm Bottom Dia, 46 mm Top Dia, 25 mm Overall Ht, Black (MPN RST9A-H2)
Stopper: Rubber, 5 Stopper Size, 23 mm Bottom Dia, 27 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST5-H2)
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Stopper: Rubber, 8 Stopper Size, 33 mm Bottom Dia, 41 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST8-H2)
Stopper: Rubber, 7 Stopper Size, 30 mm Bottom Dia, 37 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST7-H2)
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Stopper: Rubber, 7 Stopper Size, 30 mm Bottom Dia, 37 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST7-H2)
Stopper: Rubber, 7 1/2 Stopper Size, 31 mm Bottom Dia, 39 mm Top Dia, 25 mm Overall Ht, Black (MPN RST7A-H2)
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Stopper: Rubber, 7 1/2 Stopper Size, 31 mm Bottom Dia, 39 mm Top Dia, 25 mm Overall Ht, Black (MPN RST7A-H2)
Black rubber stopper, size 6, with 2 holes. Top diameter 32 mm, bottom diameter 26 mm, overall height 25 mm. Used to seal laboratory flasks, test tubes, and glassware, allowing insertion of tubing or probes for gas transfer or sampling
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Black rubber stopper, size 6, with 2 holes. Top diameter 32 mm, bottom diameter 26 mm, overall height 25 mm. Used to seal laboratory flasks, test tubes, and glassware, allowing insertion of tubing or probes for gas transfer or sampling

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