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8Pcs Solid Rubber Stopper Bungs - 27MM to 34MM Rubber Tapered Plug Flexible Durable Test Tubes Bungs with Hole, Easy to Insert & Remove for Lab Apparatus Home Flask - color: 27mm to 34mm

8Pcs Solid Rubber Stopper Bungs - 27MM to 34MM Rubber Tapered Plug Flexible Durable Test Tubes Bungs with Hole, Easy to Insert & Remove for Lab Apparatus Home Flask - color: 27mm to 34mm

$14.92 USD
$14.92 USD
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Taxes included. Shipping calculated at checkout.

About this item

  • Premium Solid Rubber Construction for Long-Lasting Use: Made from high‑quality, flexible rubber, these 8 solid rubber stopper bungs resist cracking, tearing, and chemical corrosion. Unlike brittle plastic or cork, our durable rubber tapered plug maintains a tight seal even after repeated use. Ideal for lab apparatus, home flask, or test tube applications where reliability matters. The resilient material ensures easy insertion and removal without deforming.
  • Smart Single‑Hole Design for Versatile Functionality: Each rubber stopper with hole allows secure passage of tubing, thermometers, or wires while preventing leaks. Whether you need a drilled rubber stopper for aeration setups or a fountain plug with cord slit for water features, this design fits. Use as a test tube stopper with hole, or as a replacement plug for carboys, jugs, and fermentation vessels. One hole, endless possibilities.
  • Tapered Shape Fits Multiple Sizes – No Guesswork: The conical profile of our rubber tapered plug works like a universal stopper. Simply press until snug – it seals bottle necks, flask openings, and sink drains from ½″ to 1″ diameter. No need to buy separate sizes for different containers. Perfect as a pipe stopper plug, drain plug, or water table plug replacement. Easy to trim if needed, but the flexibility already adapts to irregular openings.
  • 8‑Piece Set – Always Have the Right Stopper Ready: Stop searching for a single drilled rubber stopper when you need it. This 8‑pack gives you spares for multiple projects: home brewing, aquarium filters, essential oil distillation, or even as a slobber stopper for pet bowls. Each piece is washable and reusable. Compare to buying individual fountain plugs – you save money and time. Great for teachers, hobbyists, and lab workers.
  • Easy to Insert, Remove & Clean – No Tools Required: Thanks to the flexible yet strong rubber, you can push in or pull out these rubber stoppers bungs by hand. The non‑stick surface rinses clean under water. Use for bleeding stopper plug applications, or as a spherical rubber stopper for flask sealing. No more struggling with stuck corks or damaged glassware. Just a smooth, snug fit every time – even after autoclaving (up to 250°F).

Overview

  • Material: Rubber
  • Brand: WVIOUOPU
  • Color: 27mm to 34mm
  • UPC: 737730924794
  • Number of Items: 8

15 in stock

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Reviews

  • ⭐⭐⭐⭐⭐

    Emily Parker — Portland, Oregon
    I ordered a few fermentation supplies from PantryForge, and everything felt practical and easy to use. The jars, lids, and tools helped make my small kitchen projects feel more organized and enjoyable.

  • ⭐⭐⭐⭐⭐

    Michael Turner — Austin, Texas
    PantryForge has a useful selection of home brewing and food craft supplies. The items I received were simple to understand, sturdy, and easy to fit into my weekend brewing setup.

  • ⭐⭐⭐⭐⭐

    Sarah Collins — Madison, Wisconsin
    I like that the products feel thoughtfully selected for real home projects. I picked up a few cheese making tools and storage items, and they made the process feel much cleaner and easier to manage.

  • ⭐⭐⭐⭐⭐

    Daniel Brooks — Asheville, North Carolina
    The beekeeping supplies I ordered were exactly what I needed for basic hive maintenance. Everything was practical, well packed, and useful for keeping my setup more organized.

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FAQ

What types of products does PantryForge sell?

PantryForge offers practical supplies for beekeeping, home brewing, cheese making, fermentation, food preparation, storage, and cleaning. Our products are selected for home, hobby, and small-scale personal use.

How much does shipping cost?

We offer a flat shipping fee of $6.90 per order. Shipping fees are shown at checkout and may be non-refundable once an order has been shipped.

How long does order processing take?

Orders are typically processed within 1–3 business days, excluding weekends and public holidays. During busy periods, supplier delays, or high-volume seasons, processing may take up to 5 business days.

How long will delivery take?

Estimated delivery time is usually 5–10 business days within the United States after shipment. International delivery may take 10–20 business days, depending on the destination, carrier, customs, and local delivery conditions.

How can I track my order?

Once your order has shipped, you will receive a shipping confirmation email with tracking information. Please allow 2–5 business days for tracking updates to appear after shipment.

Can I change or cancel my order?

You may request a change or cancellation within 12 hours of placing your order. Once processing, packing, or shipment has started, changes or cancellations may no longer be possible.

What is your return policy?

Return requests must be submitted within 30 days of delivery. Items must be unused, unopened when applicable, and returned with original packaging, accessories, and proof of purchase. Some products may not be eligible for return once opened, used, washed, contaminated, or exposed to food, liquid, brewing ingredients, dairy, fermentation materials, bees, honey, wax, or hive environments.

What should I do if my item arrives damaged, defective, or incorrect?

Please contact us within 7 days of delivery at danksestplopcoed@gmail.com. Include your order number, clear photos of the item, packaging, shipping label, and a brief explanation of the issue so we can review your request.

Are your products safe for food, brewing, fermentation, or beekeeping use?

Many products are designed for food craft, brewing, fermentation, cheese making, or beekeeping-related tasks, but customers should always review each product description, material, size, cleaning instructions, and usage guidelines before purchase. Customers are responsible for using all products safely, following sanitation practices, and checking any local laws or regulations that may apply.

How can I contact PantryForge customer support?

You can contact our customer support team by email at danksestplopcoed@gmail.com. We typically respond within 1–2 business days, Monday through Friday, excluding weekends and public holidays.