Rubber Stopper - Size 7 - Drilled
物品 #: 11186592

Rubber Stopper - Size 7 - Drilled

物品 #: 11186592

HKD 108

Price Details

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

*All items will import from 美國

0 ratings 轉寫評價
有存貨
美國 從USA商店導入
現在訂購,約可在下列時間收貨: Sunday, 九月 06
Our Top Logistics Partners
  • fedex
  • dhl
U-Care Warranty:
None
選擇一個計劃
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 美國 store (110-120). Recommended power converters 立即購買.

What Stands Out

Durable Material
Made from high-quality rubber, guaranteeing long-lasting performance and resistance against wear and tear, suitable for various applications.
Drilled Design
Features a convenient drilled hole for easy attachment or use, making it versatile for laboratories and crafts, unlike competitors without this option.
Size Flexibility
Size 7 specification ensures compatibility with a range of containers, offering optimal sealing and preventing spills effectively in diverse settings.

產品詳情

Shop for high-quality rubber stoppers. Size 7, drilled design. Available at Ubuy, a 香港 with worldwide shipping. Order now!
Power SourceWind Powered
Additional FeaturesDrilled
Drill TypeBasic Drill
ColorCream
Material TypeRubber
Item Weight18.14 g
Brand NameRiteBrew
Model Number841338
UPC811088016780
Global Trade Identification Number00811088016780
Unit Count1 Count
ManufacturerHome Brew Stuff
Manufacturer Part Number841338
BrandRiteBrew
Special FeatureDrilled
MaterialRubber

Who Should Buy?

Suitable For
  • Laboratory Use

    Ideal for labs needing secure closure for flasks, providing airtight seals and preventing contamination during experiments.

  • Beverage Bottling

    Useful for small-scale beverage producers requiring a reliable way to seal bottles while allowing for the addition of tubing.

  • Crafting Projects

    Beneficial for crafters looking to create unique projects using various liquids or materials that require sealed containment.

Not Suitable For
  • High-Pressure Environments

    Not suitable for applications requiring strong pressure resistance as rubber can be compromised under significant stress.

產品敘述

Rubber Stopper - Size 7 - Drilled

About This Item

Introducing our Rubber Stopper - Size 7 - Drilled. This high-quality rubber stopper is an essential tool for any laboratory or home brewing enthusiast. Crafted with precision, this rubber stopper is designed to fit securely in a variety of containers, ensuring a tight seal.

Its size 7 dimensions make it ideal for a range of applications, from chemistry experiments to securing airlocks on fermentation vessels. The drilled design of this rubber stopper adds even more versatility, allowing you to easily insert tubing or airlocks for controlled ventilation or dispersion of substances. Made from durable rubber material, this stopper is built to withstand various chemicals and temperature fluctuations, ensuring long-lasting performance.

Whether you're a professional or hobbyist, our Rubber Stopper - Size 7 - Drilled is the perfect choice for all your lab or brewing needs. Add this reliable and versatile stopper to your collection today!.

有疑問? 與我們聊天

客戶問題與解答

  • 題: What is a rubber stopper, and what are its primary uses?

    回答: A rubber stopper, particularly size 7, is a flexible and durable device used to seal openings in laboratory glassware, such as flasks and bottles. They are primarily utilized to prevent spillage, contamination, and evaporation of contents. In labs, these stoppers are essential for storing liquids securely or using during experiments where pressure and reactions may occur. Beyond the lab, they can also be employed in home brewing and wine making, ensuring that fermentation gases can escape without letting outside air in.
  • 題: What does 'drilled' mean in the context of rubber stoppers?

    回答: 'Drilled' refers to a specific feature of certain rubber stoppers that have a hole or holes going through their center. This design allows for insertion of tubing or instruments, making them ideal for gas exchange or sampling applications. In laboratory setups that require the introduction of probes or syringes, drilled stoppers provide versatility and functionality, enabling researchers to monitor reactions or draw samples safely while maintaining a closed system.
  • 題: How do I select the right size rubber stopper?

    回答: Selecting the appropriate rubber stopper size is critical for achieving a proper seal. Size 7 stoppers typically have a specific diameter; therefore, it’s essential to know the neck size of the glassware you are using. Furthermore, consider the application; for example, if you need a stopper that allows for chemical reactions or gas escape, ensure it's compatible with those requirements. Measuring the neck diameter of your flask or bottle accurately can guarantee that you choose a stopper that fits securely and functions as intended.
  • 題: Can these rubber stoppers be used with any glassware?

    回答: While rubber stoppers are designed for compatibility with a variety of glassware, it's important to verify that the diameter of the stopper matches the neck size of the glassware. Size 7 rubber stoppers are commonly compatible with many standard laboratory bottles and flasks, but always check the specific dimensions. Avoid using them with glassware that might be incompatible in terms of chemical properties or pressure buildups, such as certain acidic solutions, to maintain safety during your experiments.
  • 題: Are rubber stoppers temperature resistant?

    回答: Yes, rubber stoppers exhibit some degree of temperature resistance, allowing them to function effectively in moderate heat and cold conditions. However, their performance may vary based on the specific rubber compound used. For laboratory applications involving high temperatures, it’s critical to check the specifications to ensure that the rubber stopper won't degrade or lose its sealing capability. This feature is particularly important when using stoppers in incubators or refrigeration settings, as both environments may affect the rubber.
  • 題: What are the benefits of using drilled rubber stoppers over solid ones?

    回答: Drilled rubber stoppers provide distinct advantages over solid stoppers, particularly in applications requiring gas exchange or fluid transfer. The drilled holes allow for easy insertion of tubes, syringes, or probes without compromising the seal, which is crucial for maintaining controlled conditions. This versatility makes them invaluable in lab settings where testing and monitoring are essential. In scenarios where flasks need to be fitted with a heating mantle or cooling system, drilled stoppers facilitate these operations without losing containment.
  • 題: Can I use rubber stoppers for home brewing?

    回答: Absolutely, rubber stoppers are favored among home brewers, especially those using glass carboys or fermentation vessels. The drilled version allows for the insertion of an airlock, enabling carbon dioxide to escape while preventing oxygen from entering the brew, thus averting oxidation. The flexibility and airtight nature of rubber stoppers not only help in maintaining optimal fermentation conditions but also streamline the brewing process, ensuring that your beverages develop their intended flavors without contamination.
  • 題: How do I properly clean and maintain rubber stoppers?

    回答: Cleaning rubber stoppers is straightforward; rinse them with warm, soapy water and avoid abrasive cleaners that can degrade the material. For enhanced longevity, consider rinsing with distilled water to prevent mineral build-up. Proper maintenance involves storing the stoppers in a cool, dry place away from direct sunlight, which can cause them to dry out or become brittle. Regular checks for cracks or signs of wear are important, especially if they have been used in reactive substances.
  • 題: Where can I buy Rubber Stopper - Size 7 - Drilled?

    回答: You can buy Rubber Stopper - Size 7 - Drilled at Ubuy. They offer a wide range of laboratory supplies, ensuring that you can find the right rubber stoppers suited for your needs. Ubuy provides an accessible online shopping platform that allows you to easily browse and order your desired products, all with the convenience of convenient online purchasing.
  • 題: Are rubber stoppers reusable?

    回答: Yes, rubber stoppers are generally reusable, making them an economical choice for both laboratory and home applications. After thorough cleaning, they can often be used multiple times for similar tasks. However, their longevity depends on the substances they come into contact with; if they degrade from chemicals or environmental conditions, their sealing efficacy may diminish. Therefore, for applications involving harsh chemicals, it’s advisable to inspect and possibly replace the stoppers after a few uses to ensure safety and efficiency.

RiteBrew Rubber Stoppers 841338 Editorial Review

The Rubber Stopper - Size 7 - Drilled has received a mixed reception among users. Many customers praise the product for its high-quality Construction and affordability, noting that it effectively seals 3-gallon carboys, making it an excellent choice for homebrew enthusiasts seeking reliable and efficient options. However, some users expressed frustration, particularly when receiving a brand other than "Fermenthaus," which led to issues with the fit – specifically, some stoppers tended to slip or pop out from the carboys during use. Additionally, while some appreciated the drilled hole for specific applications, others found it oversized for their needs. In terms of pricing, while the overall value for the product is acknowledged, a few customers felt that the cost of the drilled stoppers was not commensurate with the ease of acquisition of non-drilled alternatives. Overall, the Rubber Stopper appeals to many but comes with caveats related to product Consistency across brands and potential fit issues for certain users. **

Customer Reviews & Ratings

1 客戶評分
  • 5 星
    100%
  • 4 星
    0%
  • 3 星
    0%
  • 2 星
    0%
  • 1 星
    0%

評價此產品

與其他客戶分享您的想法

優點

  • High-quality Construction
  • Affordable price
  • Effectively seals 3-gallon carboys

缺點

  • InConsistent sizing and fit across brands

Platform Trust & Buyer Confidence

trustpilot logo
3.8/5 96 reviews
Read reviews
FZ
F Zhang
Verified buyer

“Good product, and smooth delivery!”

18-Jul-26 · via Trustpilot
RD
Roxy
Verified buyer

“Great products and services”

17 April 2026 · via Trustpilot
KD
Khushi
Verified buyer

“Ubuy Hong Kong is a game-changer. I was looking for a specific American brand that doesn't ship to Asia, and Ubuy had it in stock. The selection of global products is incredible. It saves me the hassle of using freight forwarders or asking friends to bring items over. The process was seamless from checkout to delivery”

6 July 2026 · via Trustpilot
KM
kritika
Verified buyer

“I?m always nervous buying electronics and skincare online, but Ubuy Hong Kong delivered exactly what I ordered and it was 100% genuine. It?s refreshing to find a platform that you can actually trust with premium brands. Will definitely be a returning customer.”

3 July 2026 · via Trustpilot
S
Sam
Verified buyer

“Great product, good packing, the goods arrived quickly and well protected.”

6 June 2026 · via Trustpilot
安全結帳 Global Delivery Easy Returns Genuine Products

重要資訊

  • 限制:如跨國購買產品,請注意製造商的保固有可能無效;製造商服務選項可能無法使用;產品手冊、教學、以及安全警示可能不會是目的地國家的語言;產品(與附加材料)設計也許不會符合目的地國家的標準、規格、以及標示要求;且產品也許不會符合目的地國家的伏特數值與其他電力標準(需要使用合適的變壓器或轉接器)。收件者須負責確定該產品在目的地國家可合法進口。當在 Ubuy 或其聯盟夥伴網站上訂購時,收件者為記錄上的進口者,且必須遵從目的地國家的法律與規範。
  • 由於 Ubuy 是一個全球搜尋引擎,並不是所有列於 Ubuy 的產品都有出售。產品須受出口/貿易法規規範。