Shopping Cart

Your cart is empty.

Your cart is empty.

6Pcs Solid Rubber Stopper Bungs with Hole 20mm to 26mm Solid Test Tubes Bungs Stopper for Flask, Plug Holes and Test Tube(Black)

5.0 (4) Write Review
Free shipping on orders over $29.99

$6.69

$ 2 .99 $2.99

In Stock

About this item

  • Rubber Tapered Plug is in Size : Bottom Diameter: 20mm / 0.79"; Top Diameter: 26mm / 1.02"; Height: 25mm / 0.98"; Package Include: 6 x Rubber Stopper with Hole
  • Material: Solid rubber stopper is made of high quality rubber, which is very durable, not easy to deform and has good sealing performance.
  • Easy to use: Rubber stopper is tapered, easy to pull and insert, reusable and long in service life.
  • Wide Application: The rubber plugs have the advantage of being able to with stand high temperatures up to 200 degrees Celsius. It can be used in various applications, including food, hygiene, and drinking water. Perfect for flask, plug holes, dog's pool, drainage in a fountain and test tube or other laboratory apparatus need sealed.


Specifications :

Material : Rubber

Color : Black

Type : RS-4-1

Rubber Stopper Plug Size(Approx.) : Bottom Diameter: 20mm / 0.79"; Top Diameter: 26mm / 1.02"; Height: 25mm / 0.98"

Package Include:

6 x Rubber Stopper with Hole


Doc Lamp
Reviewed in the United States on March 3, 2025
Good size for plugging the bottle.
Oakley D
Reviewed in the United States on March 11, 2025
These BUNG HOLES are AWSOME ! If you have a Bung Hole that needs stoppered dont hesitate!
Rick in CA
Reviewed in the United States on September 17, 2024
I have an inflator bag for my packraft, that I want to also use as a dry bag. All I needed to do was to plug the inflation hose to make it water tight. These rubber plugs fit perfectly.Good plugs, inexpensive. They are soft and pliable enough to conform to uneven surfaces and make a good seal, but solid enough to stay put. Recommended.
Beaumont Foos
Reviewed in the United States on June 12, 2024
I used these as spacers for a couple cat/hail screens I built for our ac window units. They worked perfectly for my project. The stoppers are soft enough to use on painted surfaces yet still very rigid. So far, so good. We will see how well they hold up to the elements.