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UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 10 Stopper Size, 45 mm Bottom Dia, 53 mm Top Dia, 25 mm Overall Ht - Rubber Stoppers

UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 10 Stopper Size, 45 mm Bottom Dia, 53 mm Top Dia, 25 mm Overall Ht

The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper with a Stopper Size of 10, featuring a 45 mm bottom diameter, 53 mm top diameter, and 25 mm overall height. It includes 2 holes and is…

SKU 3G-OTH-381373

Also listed as: RST10AH2 · RST10A H2

Brand
UNITED SCIENTIFIC SUPPLIES
Item
Stopper: Rubber, 10 Stopper Size, 45 mm Bottom Dia, 53 mm Top Dia, 25 mm Overall Ht
Category
Rubber Stoppers
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

UNITED SCIENTIFIC SUPPLIES
Manufacturer Part Number
RST10A-H2
Type
Black
Material
Rubber
Color
Black
Holes
2
Top Dia
53 mm
Bottom Dia
45 mm
Overall Ht
25 mm
Stopper Size
10

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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 Stopper Size of 10, featuring a 45 mm bottom diameter, 53 mm top diameter, and 25 mm overall height. It includes 2 holes and is identified by manufacturer part number RST10A-H2.

Frequently Asked Questions

What is a UNITED SCIENTIFIC SUPPLIES rubber stopper used for?

This black rubber stopper (size 10, 2 holes) is used to seal laboratory flasks, test tubes, and other glassware. It prevents contamination and gas leakage during experiments, distillation, or storage. The two holes allow insertion of tubing or thermometers for controlled setups.

What are the specifications of the UNITED SCIENTIFIC SUPPLIES rubber stopper RST10A-H2?

The stopper is size 10, made of black rubber, with a bottom diameter of 45 mm, top diameter of 53 mm, and overall height of 25 mm. It has 2 holes and is manufactured by UNITED SCIENTIFIC SUPPLIES INC under part number RST10A-H2.

Where to buy UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide?

3G Electric supplies UNITED SCIENTIFIC SUPPLIES rubber stoppers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

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

Measure the inner diameter of your flask opening. The stopper size (here size 10) corresponds to a specific top and bottom diameter range. For this stopper, the 53 mm top and 45 mm bottom fit standard lab glassware. Always verify dimensions against your equipment.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Stopper: Rubber, 10 1/2 Stopper Size, 42 mm Bottom Dia, 50 mm Top Dia, 25 mm Overall Ht, Black (MPN RST10-H2)
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Stopper: Rubber, 10 1/2 Stopper Size, 42 mm Bottom Dia, 50 mm Top Dia, 25 mm Overall Ht, Black (MPN RST10-H2)
Stopper: Rubber, 15 Stopper Size, 83 mm Bottom Dia, 103 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST15-H2)
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Stopper: Rubber, 15 Stopper Size, 83 mm Bottom Dia, 103 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST15-H2)
Stopper: Rubber, 14 Stopper Size, 75 mm Bottom Dia, 90 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST14-H2)
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Stopper: Rubber, 14 Stopper Size, 75 mm Bottom Dia, 90 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST14-H2)
Stopper: Rubber, 12 Stopper Size, 54 mm Bottom Dia, 64 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST12-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 12 Stopper Size, 54 mm Bottom Dia, 64 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST12-H2)
Stopper: Rubber, 11 Stopper Size, 48 mm Bottom Dia, 56 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST11-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 11 Stopper Size, 48 mm Bottom Dia, 56 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST11-H2)
Stopper: Rubber, 11 1/2 Stopper Size, 50 mm Bottom Dia, 63 mm Top Dia, 25 mm Overall Ht, Black (MPN RST11A-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 11 1/2 Stopper Size, 50 mm Bottom Dia, 63 mm Top Dia, 25 mm Overall Ht, Black (MPN RST11A-H2)

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