Higher standards tube tops silicone stoppers - pack of 6 năm 2024

Variety pack of silicone plugs by Higher Standards. designed to fit a variety of different different pieces from your smallest hand pipe to your largest beaker bong. These water proof plugs make it easy to clean your products, allowing you to shake them, and can also be day to day to lock in odor or prevent spillage in high traffic areas. They work great with the other products in the Higher Standards cleaning and maintenance line.

Includes the following sizes:

  • 1x 45 mm / 37 mm Plug
  • 1x 24 mm / 18 mm Plug
  • 1x 19 mm / 13 mm Plug
  • 1x 6 mm / 3 mm Plug
  • 1x 5 mm / 1.5 mm Plug



How much does shipping cost?

We offer free shipping on all USA orders (except HI & AK).

You may choose to purchase faster shipping at checkout.

International customers receive free shipping on orders over $300.

How long until my order ships?

To make our massive selection possible, we partner with hundreds of 3rd party sellers who sell and ship products on our marketplace directly to you. While most sellers will ship your order within 24 hours, all orders are guaranteed to be processed within 2-3 business days. Once your order ships, you may track it here.

Do you offer international shipping?

We offer international shipping to an ever-growing list of countries around the world.

A complete list of available countries is available within the shipping stage of checkout.

Orders over $300 receive FREE International Shipping.

What if my item breaks during shipping?

In the unlikely event you receive a damaged or defective item, DankStop will replace it at no cost. Simply notify our support team within 72 hours of delivery with an order number and a few photos of the packaging and damaged item(s). We'll take care of the rest.

Don't throw anything away until you speak with a rep; we might need the package back! In the event you're asked to ship a package back, we can provide a prepaid return shipping label. Learn more about out return policy or file a return using the links below.


How long does free shipping take?

Higher standards tube tops silicone stoppers - pack of 6 năm 2024

Our free shipping option is delivered via USPS or FedEx, and takes anywhere from 3-5 business days.

Orders are shipped from one of our fulfillment centers in NJ, FL, or CA.

Do you offer discreet packaging?

Higher standards tube tops silicone stoppers - pack of 6 năm 2024

For your privacy, all packages are shipped in unmarked brown or standard USPS boxes There will be no mention of DankStop on your package.

Do you ship to a PO Box?

Yes, we can ship to PO Boxes via USPS.

If you'd like to ship your order to a PO Box, please do not select FedEx as your shipping carrier, as they are unable to deliver to a PO Box.

These three custom-fitted silicone stoppers for bongs and dab rigs make it way easier to get the cleaning done. Fill up your pipe with cleaner and pop in a stopper. Give it a vigorous shake until you see the build-up fall away, then all you have to do is pour it out and rinse your water pipe clean.


  • Pack of 6 Includes: 1 x 37 mm Plug; 1 x 18 mm Plug; 1 x 13 mm Plug; 1 x 3 mm Plug; 2 x 1.5 mm Plug
  • Watertight corks for bongs and rigs
  • 5 sizes for mouthpieces and downstems
  • Made by Higher Standards
  • Reviews
  • Questions

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Over all great but the larger plug does not fit any of my glass!! It's like it's one size to big that sucks! But I will make it work by grinding it down I hope lol... but overall fast shipping great prices will buy from you again...thanks

Higher standards tube tops silicone stoppers - pack of 6 năm 2024

14-18mm and some super small pieces for smaller glass. Works with all my glass, currently 6 bongs and around 10 bowls and 6 ash catchers. makes it possible to shake the bong like a maniac . my glass get super clean super fast now. I use cold water from the backyard hose to rinse all the pieces out. will buy more when needed .

I had to shave a small amount from the large plug so it wouldn't pop off. The other plugs worked well.

I only wish that there had been 4 sizes. The large one is not large enough to plug up a regular old bong. Which I have and still use. I like the new things that I buy at 420 Science, however I do switch off while other Pipes are awaiting to be cleaned. There are 3 plugs. There were really two sizes I needed. 1 smaller to fit my new pipe and a larger one. But, what are you going to do. Just wait until something else comes out.