APUXONRated 4.8 out of 5 from 4 reviews

APUXON 4 Piece Number 6 White Tapered Solid Rubber Stopper Lab Seal Plug For Glassware Flasks And Industrial Containers 33x25x28mm

Why you'll like it

  • Airtight Seal Performance — Conical tapered shape ensures a tight, leak-proof fit for various glassware neck sizes and container openings
  • Premium Rubber Material — Manufactured from dense, durable solid white rubber that minimizes odor and prevents cracking over time
  • Precise Dimensions — Each Number 6 stopper features a 33 millimeter top diameter, 25 millimeter bottom diameter, and 28 millimeter height for exact fitting
  • Multi-Purpose Application — Ideal for laboratory flasks, industrial pipe sealing, liquid sample containment, audio speaker port tuning, and DIY projects
  • Practical Value Pack — Includes 4 identical solid white rubber plugs to supply multiple laboratory setups or replacement needs

Product details

Description

The APUXON Number 6 White Tapered Solid Rubber Stopper set provides a dependable, airtight seal for laboratory glassware, industrial containers, and specialized equipment. Crafted from premium solid rubber, these durable plugs feature a smooth conical design that allows for effortless insertion and removal while maintaining a firm, leak-proof hold. Each stopper is specifically proportioned with a 33 millimeter top diameter, 25 millimeter bottom diameter, and 28 millimeter height, making it an ideal choice for standard Erlenmeyer flasks, test tubes, small pipe ends, and fluid containment systems.

Engineered for exceptional resilience and low odor, these solid rubber plugs resist cracking, deformation, and wear during continuous everyday use. Beyond conventional chemical testing and scientific laboratory applications, these versatile stoppers serve effectively in industrial plumbing, DIY crafting, and acoustic audio modifications such as plugging speaker vents. Whether you are managing professional laboratory experiments, securing liquid samples, or working on home audio tuning, this 4 piece set delivers consistent sealing performance and long-lasting durability.

How to use

  1. Select the appropriate container or flask opening requiring a seal.
  2. Gently align the smaller 25 millimeter end of the tapered rubber stopper with the rim.
  3. Press firmly inward while applying a slight twisting motion until the plug sits snugly inside the opening.
  4. To remove, twist gently while pulling outward.
  5. Wash with mild detergent and water after contact with non-corrosive liquids, then dry thoroughly before storage.

Ingredients

High-Density Vulcanized Natural Rubber Compound

As printed by the brand. Check the pack label if you have an allergy.

Specifications

BrandAPUXON
Ships fromUSA (sourced directly), checked in Navi Mumbai
Sold byDropy.in

Ratings & reviews

From our customers

4.84 reviews
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Write a reviewAPUXON 4 Piece Number 6 White Tapered Solid Rubber Stopper Lab Seal Plug For Glassware Flasks And Industrial Containers 33x25x28mm
Filter reviews4 reviews

Top reviews first: highest rated, with photos first

  • Siddharth P.
    5 ★

    baba sathimghetla

    vaddilyanna thode glass parts seal karayla lagtat, tyancha sathi magvla. quality mast aahe, solid rubber ahe ani smell pan nahiye jyast.

  • Ananya I.
    5 ★

    perfect fit for flasks

    Ordered these rubber stoppers for some old glassware at work and they do the job well. The tapered shape makes it very smooth to push in and pull out without struggling.

  • Rohan V.
    5 ★

    kaafi strong rubber hai

    liye the lab ke flasks ke liye, fit ekdum solid baithta hai. 33x25x28mm size exact match hua aur leak proof hai pura.

  • Kunal S.
    4 ★

    sahi cheez hai bas holes nahi hai

    audio speaker vents plug karne ke liye try kiya tha, acha hold hai. bas dhyan rakhna ki solid design hai toh bich me hole nahi milega tubing ke liye. baki quality solid hai.

FAQs

What happens when you plug a speaker port or vent with a solid rubber stopper?

Plugging a speaker bass reflex port alters the low-frequency acoustic output by converting a ported cabinet design into a sealed enclosure system. This reduces boomy bass resonance, tightens overall bass response, and eliminates unwanted port noise during playback.

What are the exact measurements of a Number 6 rubber stopper?

A Number 6 rubber stopper typically measures approximately 33 millimeters at the top diameter, 25 millimeters at the bottom diameter, and has a height of 28 millimeters.

Are these white rubber stoppers reusable?

Yes, these stoppers are made of high-quality solid rubber that maintains flexibility and seal integrity over repeated uses. They can be cleaned easily with warm water and mild soap.

Are APUXON rubber stoppers on Dropy India genuine imported products from the USA?

Yes, all APUXON products sold on Dropy India are authentic items sourced directly from verified distributors in the United States, offering fast domestic delivery across India.

Can solid rubber stoppers be used for liquids and chemical containment?

These solid rubber plugs offer an effective airtight seal for general laboratory liquids, aqueous solutions, and non-corrosive chemical samples in glass containers.

How long will delivery take?

Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.

Is cash on delivery available?

Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.

Are your products genuine?

Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.

What if my order arrives damaged or wrong?

Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.

Is delivery free?

Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.