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UNITED SCIENTIFIC SUPPLIES Rubber Stopper Size 5, 2 Holes, Black - Rubber Stoppers

UNITED SCIENTIFIC SUPPLIES Rubber Stopper Size 5, 2 Holes, Black

The UNITED SCIENTIFIC SUPPLIES Stopper: Rubber is a black rubber stopper in size 5, featuring a 23 mm bottom diameter, 27 mm top diameter, and 25 mm overall height. It includes 2 holes and is manufactured by UNITED…

SKU 3G-OTH-381383

Also listed as: RST5H2 · RST5 H2

Brand
UNITED SCIENTIFIC SUPPLIES
Item
Rubber Stopper Size 5, 2 Holes, Black
Part Number
RST5-H2
Category
Rubber Stoppers
Available to Order
Also known as:RST5-H2UNITED SCIENTIFIC SUPPLIES
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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
RST5-H2
Type
Black
Material
Rubber
Color
Black
Holes
2
Top Dia
27 mm
Bottom Dia
23 mm
Overall Ht
25 mm
Stopper Size
5

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 in size 5, featuring a 23 mm bottom diameter, 27 mm top diameter, and 25 mm overall height. It includes 2 holes and is manufactured by UNITED SCIENTIFIC SUPPLIES INC under part number RST5-H2.

Frequently Asked Questions

What is a UNITED SCIENTIFIC SUPPLIES rubber stopper used for?

This rubber stopper is used to seal laboratory flasks, test tubes, and other glassware. The 2 holes allow insertion of glass tubing, thermometers, or probes for experiments and chemical reactions. It is suitable for general lab applications requiring a secure, non-reactive seal.

What are the specifications of the UNITED SCIENTIFIC SUPPLIES rubber stopper size 5?

This stopper is size 5, made of black rubber, with a bottom diameter of 23 mm, top diameter of 27 mm, and overall height of 25 mm. It has 2 holes and is manufactured by UNITED SCIENTIFIC SUPPLIES INC under part number RST5-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, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this stopper for your laboratory needs.

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

To select the correct stopper, measure the inner diameter of your flask opening. The stopper size 5 fits openings requiring a bottom diameter of 23 mm. Ensure the top diameter (27 mm) provides a snug seal. For 2-hole applications, verify hole alignment with your tubing or probes.

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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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Black rubber stopper, size 3, with a bottom diameter of 18 mm, top diameter of 24 mm, and overall height of 25 mm. Features 2 holes for inserting tubing or probes. Commonly used to seal laboratory flasks, test tubes, or bottles in chemistry and biology applications
UNITED SCIENTIFIC SUPPLIES
Black rubber stopper, size 3, with a bottom diameter of 18 mm, top diameter of 24 mm, and overall height of 25 mm. Features 2 holes for inserting tubing or probes. Commonly used to seal laboratory flasks, test tubes, or bottles in chemistry and biology applications

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