We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 5 Stopper Size, 23 mm Bottom Dia, 27 mm Top Dia, 25 mm Overall Ht - Rubber Stoppers

UNITED SCIENTIFIC SUPPLIES Stopper: Rubber, 5 Stopper Size, 23 mm Bottom Dia, 27 mm Top Dia, 25 mm Overall Ht

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
Stopper: Rubber, 5 Stopper Size, 23 mm Bottom Dia, 27 mm Top Dia, 25 mm Overall Ht
Category
Rubber 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
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.

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 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.

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, 9 Stopper Size, 37 mm Bottom Dia, 45 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST9-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 9 Stopper Size, 37 mm Bottom Dia, 45 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST9-H2)
Stopper: Rubber, 7 Stopper Size, 30 mm Bottom Dia, 37 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST7-H2)
UNITED SCIENTIFIC SUPPLIES
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, 9 1/2 Stopper Size, 38 mm Bottom Dia, 46 mm Top Dia, 25 mm Overall Ht, Black (MPN RST9A-H2)
UNITED SCIENTIFIC SUPPLIES
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 1/2 Stopper Size, 24 mm Bottom Dia, 28 mm Top Dia, 25 mm Overall Ht, Black (MPN RST5A-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 5 1/2 Stopper Size, 24 mm Bottom Dia, 28 mm Top Dia, 25 mm Overall Ht, Black (MPN RST5A-H2)
Stopper: Rubber, 6 Stopper Size, 26 mm Bottom Dia, 32 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST6-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 6 Stopper Size, 26 mm Bottom Dia, 32 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST6-H2)
Stopper: Rubber, 8 1/2 Stopper Size, 36 mm Bottom Dia, 43 mm Top Dia, 25 mm Overall Ht, Black (MPN RST8A-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 8 1/2 Stopper Size, 36 mm Bottom Dia, 43 mm Top Dia, 25 mm Overall Ht, Black (MPN RST8A-H2)

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Stopper: Neoprene, 6 Stopper Size, 26 mm Bottom Dia, 32 mm Top Dia, 25 mm Overall Ht, Green, 0 Holes (MPN NST6-S)
Stopper: Neoprene, 2 Stopper Size, 16 mm Bottom Dia, 20 mm Top Dia, 25 mm Overall Ht, Green, 0 Holes (MPN NST2-S)
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Stopper: Neoprene, 2 Stopper Size, 16 mm Bottom Dia, 20 mm Top Dia, 25 mm Overall Ht, Green, 0 Holes (MPN NST2-S)
Stopper: Rubber, 8 Stopper Size, 33 mm Bottom Dia, 41 mm Top Dia, 25 mm Overall Ht, Black, 2 Holes (MPN RST8-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 1/2 Stopper Size, 31 mm Bottom Dia, 39 mm Top Dia, 25 mm Overall Ht, Black (MPN RST7A-H2)
UNITED SCIENTIFIC SUPPLIES
Stopper: Rubber, 7 1/2 Stopper Size, 31 mm Bottom Dia, 39 mm Top Dia, 25 mm Overall Ht, Black (MPN RST7A-H2)