GSC International
0 ratings
RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole (1-Pound Pack),Black
genuine image
RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole (1-Pound Pack),Black
Versatile and durable Black #3-1 Hole with dimensions Top Diameter 24 mm, Bottom Diameter 18 mm, and Length 25 mm.
RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole (1-Pound Pack),Black
Item #: 32899312

RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole (1-Pound Pack),Black

86% of respondents would recommend this to a friend

Item #: 32899312

XAF 16724

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Wednesday, October 07
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Versatile and durable Black #3-1 Hole with dimensions Top Diameter 24 mm, Bottom Diameter 18 mm, and Length 25 mm.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Durable Material
Made from high-quality rubber, these stoppers are designed for long-lasting use, ensuring they remain effective in various settings, including laboratories and homes, while resisting wear and tear.
Versatile Drilling
Each stopper features a drilled hole, making them perfect for various applications, such as holding rods in place, creating a secure seal, or acting as a stopper for liquids.
Convenient Packaging
Packaged in a 1-pound bag, these size 3 stoppers offer bulk supply convenience, allowing users to stock up while enjoying more value for money without compromising on quality or performance.

Product Details

Shop the best selection of GSC International Rubber Stoppers in Size 3 with a drilled 1-hole. Top Diameter 24mm, Bottom Diameter 18mm, and Length 25mm. Approx 38 per 1lb pack. Find the perfect rubber stoppers for your needs at Ubuy Equatorial Guinea.

Who Should Buy?

Suitable For
  • Laboratory Use

    Ideal for chemists and researchers needing secure sealing solutions in various glassware setups for experiments.

  • Home Brewing

    Perfect for home brewers looking to ferment beverages while preventing contamination and allowing gas escape from fermenters.

  • Craft Projects

    Great for artists and crafters needing reliable stoppers for DIY projects where securing materials is essential.

Not Suitable For
  • High Pressure

    Not suitable for situations requiring stoppers under high pressure, as they may not withstand excessive forces.

Product Description

RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole (1-Pound Pack),Black

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are RS-3-1 rubber stoppers used for?

    Answer: RS-3-1 rubber stoppers are versatile tools commonly used in laboratories, workshops, and home environments to seal containers. They are perfect for creating airtight seals on glassware or bottles, which helps prevent evaporation and contamination. Additionally, the drilled hole allows for the insertion of tubing, making these stoppers ideal for use in experiments or processes requiring gas exchange.
  • Question: What size is the RS-3-1 rubber stopper?

    Answer: The RS-3-1 rubber stopper is categorized as 'Size 3'. This sizing refers to the dimensions that generally fit the neck of laboratory glassware, allowing for a snug fit. It's essential to use the correct size stopper to ensure optimal sealing and functionality during experiments or storage. For reference, Size 3 stoppers typically suit bottles or flasks with a neck diameter of around 18-20mm.
  • Question: Can I use RS-3-1 rubber stoppers for both liquids and gases?

    Answer: Yes, RS-3-1 rubber stoppers are designed to be effective for both liquids and gases. The rubber material is non-reactive, making it suitable for various chemical substances in laboratory settings. The drilled hole facilitates the passage of gases or liquids through tubing, allowing for controlled experiments or processes where gas release or fluid transfer is necessary.
  • Question: Are these rubber stoppers reusable?

    Answer: Absolutely, RS-3-1 rubber stoppers are reusable. Their durable rubber composition allows them to withstand multiple uses without losing their sealing capability. After using them, simply clean them with appropriate solutions to remove contaminants or residues. Their reusability makes them a cost-effective choice for both professional and personal applications.
  • Question: What materials are RS-3-1 rubber stoppers made of?

    Answer: RS-3-1 rubber stoppers are made from high-quality rubber, which is known for its flexibility and resilience. This material allows the stoppers to provide an airtight seal while being resistant to various chemicals. Their construction ensures long-lasting performance, making them suitable for science labs, workshops, or even home use where secure closures are necessary.
  • Question: How do I choose the right size rubber stopper?

    Answer: To choose the right size rubber stopper, measure the diameter of the neck of the bottle or flask where the stopper will fit. Refer to sizing charts, such as the one for RS-3-1, to find a match. Selecting the correct size is crucial for ensuring a tight fit, which is necessary for preventing leaks and ensuring safe storage or experiments.
  • Question: Do RS-3-1 rubber stoppers come in other colors or sizes?

    Answer: Yes, while RS-3-1 rubber stoppers are available in black, manufacturers often produce them in various colors and sizes. Different colors can help users easily identify specific stoppers for unique applications or substances. It's best to check product listings or catalogs to find the right combinations that suit your specific needs.
  • Question: Are these stoppers suitable for high-temperature applications?

    Answer: RS-3-1 rubber stoppers are generally suited for temperatures typical in laboratory environments but may not withstand extreme heat. For procedures involving heating or cooling, consult material specifications. If high-temperature resistance is required, consider options explicitly designed for such conditions to ensure compatibility and safety.
  • Question: What kind of packaging do RS-3-1 rubber stoppers come in?

    Answer: RS-3-1 rubber stoppers typically come in a 1-pound pack, which allows users to have enough quantity for various applications. The packaging ensures that the stoppers remain clean and protected until you're ready to use them. This bulk packaging is particularly advantageous for laboratories or projects where multiple stoppers are required simultaneously.
  • Question: Where can I buy RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole (1-Pound Pack), Black?

    Answer: You can purchase RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole, in a 1-Pound Pack from Ubuy. They offer convenient online shopping options and have a selection of similar products that might also meet your needs. Ubuy provides a reliable platform for sourcing quality lab equipment and supplies, making it easy to find what you require.

GSC International Rubber Stoppers Editorial Review

RS-3-1 Rubber Stoppers, Size 3, Drilled 1-Hole (1-Pound Pack), Black are versatile tools designed for various needs, including installations and projects. Many users have found them strong and effective for general use, especially when installing fans. However, there have been concerns regarding fitting, particularly with certain test tubes where they might slide too far in and fail to seal properly. Additionally, some customers have reported receiving fewer stoppers than expected, raising concerns about product consistency. Despite these issues, the overall aesthetic and intended design generally align with user expectations, which is a plus for those looking to utilize them in crafts or scientific projects.

Customer Reviews & Ratings

1 customers ratings
  • 5 Star
    0%
  • 4 Star
    100%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Pros

  • Strong and effective for general use
  • Ideal for installing fans
  • Versatile applications in projects
  • Attractive appearance for various uses
  • Generally aligns with product description

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9477 reviews
Read reviews
JK
Jasmin
Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
AG
Anke
Verified buyer

“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
H
Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
AC
Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

XAF 16724

Order now and get it around Wednesday, October 07

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.