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- 4pcs 4# Rubber Stopper White Tapered Lab Seal...
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Item #:
91817187
4pcs 4# Rubber Stopper White Tapered Lab Seal Solid Rubber Plug
Item #:
91817187
LSL 291
Price Details
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*All items will import from US
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Imported from USA store
QTY:
Only 16 items left in stock.
Order now and get it around Monday, August 31
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What Stands Out
Quality Material
Made from high-quality solid rubber, these stoppers ensure durability and excellent sealing, making them ideal for laboratory use and preventing leaks or contamination.
Versatile Design
The tapered design allows these stoppers to fit various laboratory glassware sizes securely, providing a flexible solution for different applications in research and experimentation.
Pack of Four
Offering four pieces per package, this set provides great value, ensuring you have enough stoppers for multiple experiments or projects without the need for frequent reordering.
Product Details
Product Technical Details
| Package Dimensions | 4.8 x 3.7 x 1.26 inches |
| Item Weight | 2.39 ounces |
| Manufacturer | APUXON |
| Item model number | apx-rubberstopper-4 |
What's in the box
rubber stopper
Who Should Buy?
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Laboratory Use
Ideal for laboratories needing reliable sealing for flasks and test tubes to prevent contamination and evaporation.
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Home Brewing
Perfect for home brewers to seal fermentation vessels, ensuring air-tight conditions for brewing without leakage.
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Craft Projects
Useful for various craft projects requiring durable seals, such as bottle art or DIY containers.
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High Pressure Applications
Not suitable for high pressure environments where stronger sealing mechanisms are necessary to withstand pressure changes.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are the dimensions of the 4# rubber stopper?
Answer: The 4# rubber stopper typically has a tapered design that fits various laboratory glassware. Its dimensions generally include a diameter at the top of approximately 22 mm and a height of about 27 mm. The tapered shape allows for a secure fit, essential for preventing leaks during experiments. For practical use, these stoppers are ideal for sealing flasks, test tubes, and other laboratory containers, ensuring your samples remain uncontaminated. -
Question:
What materials are used in the construction of the rubber stopper?
Answer: These rubber stoppers are made of solid rubber, providing durability and flexibility. The solid construction ensures a tight seal, which is crucial when trying to prevent evaporation or contamination in lab applications. Given their composition, these stoppers can withstand various chemicals, making them suitable for both biological and chemical laboratories, where maintaining atmospheric conditions is vital. -
Question:
Can these rubber stoppers be used for home brewing?
Answer: Absolutely! The 4# rubber stopper is commonly used in home brewing to seal fermentation vessels. Its airtight fit prevents unwanted air from entering while maintaining carbonation, which is essential for quality brewing. Whether you're fermenting beer or wine, these stoppers can ensure a successful brewing process by protecting your liquid from contamination. -
Question:
Are these rubber stoppers resistant to chemical exposure?
Answer: Yes, these rubber stoppers are designed to resist various chemicals, making them versatile for laboratory use. Their resistance to solvents and reagents means they can be used safely with a wide range of materials without degrading. This feature is particularly beneficial in setting up experiments or storing volatile substances, where integrity and safety are paramount. -
Question:
How do I clean and maintain the rubber stoppers?
Answer: Cleaning rubber stoppers is straightforward. You can wash them with warm soapy water and rinse thoroughly to remove any residues. Avoid using harsh chemicals or abrasive scrubbers that could compromise the integrity of the rubber. Regular maintenance ensures the stoppers retain their sealing properties, which is critical for experimental reliability and safety in both laboratories and home applications. -
Question:
What applications are suitable for these 4# rubber stoppers?
Answer: These rubber stoppers are suitable for a variety of applications including laboratory experiments, fermentation processes, and sealing glass containers. Their ability to create an airtight seal makes them perfect for chemical storage and biological assays. Additionally, hobbyists can utilize them in DIY science projects or for storing homemade beverages, ensuring that their creations are well protected. -
Question:
Do these rubber stoppers fit all lab glassware?
Answer: The 4# rubber stopper fits a range of laboratory glassware, especially those designed with a neck size compatible with this stopper's dimensions. However, it may not fit all types of laboratory equipment perfectly. Always check the neck size of your containers prior to purchase to ensure an optimal fit, especially when using them for critical experiments where a strong seal is necessary. -
Question:
Are these rubber stoppers reusable?
Answer: Yes, these rubber stoppers are reusable, making them a cost-effective option for both laboratories and home use. With proper cleaning and maintenance, they can be used multiple times without losing their sealing capabilities. This is particularly advantageous in settings where experimentation requires frequent access to samples, as you can easily reseal containers without needing to discard and replace stoppers regularly. -
Question:
What color options are available for these rubber stoppers?
Answer: The standard option for the 4# rubber stoppers is typically white, which is common in laboratory settings. While specific color variants may not be widely available, the neutral color ensures compatibility with various laboratory decor and minimizes the risk of interference with experiments. This design choice enhances visibility and helps in preventing errors during lab procedures. -
Question:
Where can I buy 4pcs 4# Rubber Stopper White Tapered Lab Seal Solid Rubber Plug?
Answer: You can purchase the 4pcs 4# Rubber Stopper White Tapered Lab Seal Solid Rubber Plug from Ubuy. They offer a variety of products, and you can order the stoppers conveniently online. Ubuy frequently provides options that cater to various needs, ensuring that you have access to quality laboratory supplies right at your fingertips.
APUXON Rubber Stoppers apx-rubberstopper-4 Editorial Review
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Customer Reviews & Ratings
16 customers ratings
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Pros
- High quality materials
- User-friendly design
- Excellent customer support
- Durable and long-lasting
Cons
- Slightly bulky for travel.
Platform Trust & Buyer Confidence
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Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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23 July 2026 · via Trustpilot
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LSL 291
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