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stonylab Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint 500 ml with PTFE Stopcock for Laboratory (500 ml)
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stonylab Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint 500 ml with PTFE Stopcock for Laboratory (500 ml)
High quality professional equipment makes every experiment easy.
stonylab Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint 500 ml with PTFE Stopcock for Laboratory (500 ml)
Item #: 46016679

stonylab Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint 500 ml with PTFE Stopcock for Laboratory (500

Item #: 46016679

SLL 1947049

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*All items will import from US

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Order now and get it around Wednesday, July 08
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What Stands Out

High-Quality Material
Crafted from premium borosilicate glass, this funnel offers exceptional thermal resistance and durability, ensuring reliable use in various laboratory conditions without compromising integrity.
Precision Engineering
Designed with a 24/40 joint and a precise PTFE stopcock, this funnel ensures accurate flow control and easy operation, addressing common issues of unwanted spills and inconsistent measurements in lab experiments.
Graduated Design
The graduated markings on this 500 ml funnel facilitate precise measurements and easy monitoring of addition volumes, enhancing user efficiency while minimizing the risk of measurement errors during critical procedures.

Product Details

Shop stonylab Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint 500 ml with PTFE Stopcock for Laboratory (500 ml) online at a best price in Sierra Leone. B09MYGJSQ4
Item Weight1.2 lbs (540 grams)

Who Should Buy?

Suitable For
  • Laboratory Researchers

    Ideal for researchers conducting experiments requiring precise liquid addition and volume measurement in laboratory settings.

  • Chemistry Students

    Perfect for chemistry students needing reliable equipment for lab experiments involving liquid transfer and analysis tasks.

  • Professional Chemists

    Great for professional chemists who need durable lab equipment for accurate chemical reactions and high-quality results.

Not Suitable For
  • Casual Users

    Not suitable for casual users who may not need specialized laboratory equipment for infrequent or simple tasks.

  • Non-Laboratory Settings

    Users outside laboratory environments might find the complexity and precision unnecessary and cumbersome for casual applications.

  • Budget-Conscious Buyers

    Those looking for low-cost alternatives may find this product pricier compared to more basic options available.

Product Description

stonylab Pressure Equalizing Graduated Addition Funnel, Borosilicate Glass Dropping Funnel 24/40 Joint 500 ml with PTFE Stopcock for Laboratory (500 ml)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the purpose of a pressure equalizing graduated addition funnel?

    Answer: The pressure equalizing graduated addition funnel is designed to facilitate the controlled addition of liquids into a reaction setup while maintaining equal pressure inside the funnel and the reaction vessel. This function is crucial in preventing the introduction of air bubbles that could disrupt chemical reactions. For example, in a titration process, using this funnel allows for a smooth and consistent flow of your titrant, leading to more accurate results.
  • Question: What materials are used in the stonylab pressure equalizing funnel?

    Answer: The stonylab pressure equalizing funnel is constructed from high-quality borosilicate glass, known for its durability and resistance to thermal shock. It features a PTFE stopcock which provides excellent chemical resistance and can withstand a wide range of substances. This makes it highly suitable for various laboratory applications including organic and inorganic chemistry experiments where precise measurements and chemical compatibility are essential.
  • Question: What is the capacity of the stonylab addition funnel?

    Answer: The stonylab pressure equalizing addition funnel has a capacity of 500ml. This ample volume allows for significant quantities of liquid to be added in a controlled manner, which is particularly beneficial in experiments that require multiple additions of reagents. Researchers can efficiently dispense large amounts of solution without the need for frequent refills, optimizing their time and workflow during experiments.
  • Question: Is the stonylab funnel suitable for high-pressure applications?

    Answer: The stonylab pressure equalizing graduated addition funnel is designed for moderate pressure applications, typically encountered in standard laboratory settings. It is crucial to ensure that the funnel is not subjected to excessive pressures beyond its specifications, as this could lead to breakage. If high-pressure applications are required, additional equipment or specialized funnels should be utilized to ensure safety and efficacy.
  • Question: How does the PTFE stopcock function in this funnel?

    Answer: The PTFE stopcock in the stonylab addition funnel controls the flow of liquids with precision and ease. PTFE is chemically inert, which means it won’t react with the substances being added, allowing for accurate and reliable dispensing. Users can easily adjust the flow rate, making it possible to carefully manage the addition of reagents during sensitive chemical reactions where timing and concentration are crucial.
  • Question: What joint size is compatible with the stonylab addition funnel?

    Answer: The stonylab pressure equalizing addition funnel is designed with a 24/40 joint size. This standardized joint size is commonly used in laboratory glassware and ensures compatibility with other glass components, such as flasks and adapters. This compatibility allows for seamless integration into various experimental setups, making it an essential tool for lab work involving titrations or other precise addition processes.
  • Question: Can the stonylab funnel be used for organic solvents?

    Answer: Yes, the stonylab pressure equalizing graduated addition funnel is suitable for use with various organic solvents due to its borosilicate glass construction and PTFE stopcock, which provide excellent chemical resistance. This feature makes the funnel ideal for applications in organic chemistry labs where solvents are frequently used. It's important to ensure that the solvents being used do not exceed the funnel's chemical compatibility range for optimal performance.
  • Question: What are some common applications of the stonylab addition funnel?

    Answer: Common applications for the stonylab pressure equalizing graduated addition funnel include titrations, controlled addition of reagents, and processes requiring the mixing of liquids under atmospheric pressure. Researchers often utilize this funnel for experiments that need precise measurements, such as synthesizing chemical compounds or conducting analytical procedures where accurate reagent delivery is critical for achieving successful outcomes.
  • Question: How should I clean the stonylab addition funnel after use?

    Answer: Cleaning the stonylab pressure equalizing graduated addition funnel should be done with care to preserve its integrity. It is recommended to rinse it with appropriate solvents used during experiments, followed by a thorough wash with warm, soapy water. Ensure to carefully clean the PTFE stopcock as well, as residues can affect its operation. Proper cleaning ensures the funnel remains free from contamination for future use.
  • Question: Where can I buy the stonylab Pressure Equalizing Graduated Addition Funnel in Sierra Leone?

    Answer: You can purchase the stonylab Pressure Equalizing Graduated Addition Funnel at Ubuy. Ubuy is an online retailer that specializes in providing a wide range of laboratory equipment, including high-quality glassware and accessories. Their platform offers a user-friendly shopping experience, allowing you to easily find the addition funnel along with necessary specifications and features.

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“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
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“Accurate delivery timing given”

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“Not madly expensive like I thought, and much quicker than promised.”

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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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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.
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SLL 1947049

Order now and get it around Wednesday, July 08

QTY:

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
Fastest cross-border delivery

Features & Benefits

  • High quality equipment designed for labs
  • Pressure equalizing addition funnel for closed system experiments
  • Made from durable borosilicate glass with 24/40 joint and PTFE stopcock
  • Available in 50ml, 100ml, and 500ml capacities with graduations
  • StonyLab provides premium customer service and ensures product quality
  • Designed in New York for scientific research and innovation