The Best 18mm Ash Catcher Of 2022 and Why You Need It

3 of the Best 18mm Ash Catchers of 2022

(We Tested 10 18mm Ash Catchers to Find You the Best of the Best)

It’s known that ash catchers are the perfect extension for maintaining a clean bong while keeping burnt ash out.

A glass ash catcher is the most ideal add on device that prevents any residue, debris or small weed particles from going into the water chamber of your bong. 

If you want to get the most out of your smoking experience, it’s no doubt that using an ashcatcher is a wonderful solution. 

After testing 10 different glass ash catchers, our top 3 picks are:

Screws Perc

18mm ash catcher

Best Overall
18mm Ash Catcher


ash catcher 18mm

Best Premium
18mm Ash Catcher


18mm ash catcher 90 degree

Best Budget
18mm Ash Catcher

A Well Designed 18mm Ash Catcher is Your Bong's Perfect Filtering System

Here at Cannassentials, we test cannabis products only from trusted online headshops. How did we test to find these top 3 best 18mm ash catchers?

  • We Reviewed over 40 industry leading 18mm ash.catchers. 
  • We Bought 10 of the best 18mm ashcatchers.
  • We Tested the 10 ash catchers 18mm to find out which ones were the best
  • We Contacted previous customers to see how well their ash catcher 18mm held up.
cannabis products

We tested and focused our attention to specifically trying out the 18mm ash catcher since they are the second most commonly used joint size coming in after 14mm. Our studies checked to make sure each of the different kinds of 18mm ashcatchers was durable, had a proper filtration, and functioned up to par with consistently keeping out unwanted ash.

If you are new to 18mm ash catchers, we strongly suggest you skip below to learn how to use an ash catcher.

Pro-tip: This article is equipped with Quick Skip function so you can save time and navigate to what section is most helpful. Click here to skip below to land find out which 18mm glass ash catcher we felt was worth the spend. We equipped Quick Skip links to jump you back to the top as well.

Constant Variables: It was quite an exhilarating experience to be able to test these bad boys back to back to see just how well they performed against each other in terms of quality and function. To keep accurate data readings, we tested each ash catcher with the same amount of cannabis using the same exact strain for each trial. With so many designs out there, it was tough narrowing down ones we thought justified our standards, but we were able to find 3 that were worth the mention.

Finding the best 18mm ash catcher, resulted in us testing for water filtration, cooling of smoke, percolation efficiency, and consistency on keeping particles out. We tested big hits, little hits, to ones in the middle to be sure we were able to get every possible bowl size so that we could accurately review them for their performance. 

In our research, we went through all of our sources, reviews, and experiences (even the negative ones), to really see how these were tested and what people looked for in terms of quality. 

You can take a closer look at our in depth research behind best 18mm ashcatcher down below.

Best 18mm Ash Catcher Index

Best 18mm Ash Catcher of 2022

For an 18mm ashcatcher to function properly, it has to balance or match the size of your bong or water pipe, in order to prevent spillage or leaks. An ashcatcher 18mm can easily cause your bong to tip over if you do not have the correct size, so it is important to find one that best fits your glassware. Check out our recommendations for 2022 best 18mm ash catcher. If you have another recommendation please feel free to contact us so we can test.

Best All Around 18mm Glass Ash Catcher for Daily Use

ash catcher 18mm

18mm 90° Screws Perc Ash Catcher


This beautiful piece works wonderfully for not only keeping out burnt ash and debris, but for cooling down your smoke so that you can have the smoothest of hits. This 18mm ash catcher is the perfect addition to any water pipe or bong to keep your piece looking crystal clean at all times.

Skip below to see our research on Best Budget 18mm Ash Catcher.

Best Cheap Ash Catcher 18mm

18mm ash catcher 90 degree

90° Honeycomb Ash Catcher


Smoke Cartel features lovely cannabis products, such as this beautiful 90 degree 18mm honeycomb ash catcher. It’s listed at 18.8 however, numbers are always rounded up. In other words, this 18.8mm will fit just like an 18mm would. This Pulsar 18mm honeycomb ash catcher functions exceptionally well at keeping burnt ash out of your bong piece, while still delivering the smoothest smoke possible for every session. Don’t just take our word for it, 

Skip below to see our research on Best Budget 18mm Ash Catcher.

Best Premium Ash Catcher 18mm Worth The Spend

18.8mm ash catcher

18mm Recycler Ash Catcher


There were many high end ash catchers that we discovered, but that didn’t necessarily mean they were worth the high price tag. This one of a kind 18mm recycler ashcatcher from BadassGlass won us over for best design, functionality, percolation, versatility, and consistency, which matched its price. If anything, you’re getting more bang for your buck. This is an absolute must have if you want to throw in a little extra for performance and reliability. And how can you resist the sleek and clean design. 

Skip below to see our research on Best Premium Ash Catcher.

Research Behind BadassGlass 18mm 90° Screws Perc Ash Catcher

ash catcher 18mm 90 degree
  • Amazing Design
  • Entire product made from high-quality borosilicate glass 
  • Powerful Water Filtration
  • 4 inch Chamber (More room for bubble production)
  • 90° Angle (Better stability, support, and balance.)
  • 8 Slitted Screw Hole (Optimal smoke and water filtration)
  • Consistent
  • Great Pricing
  • Shipping arrived on time and packaging quality was great
  • Almost all previous customers were happy
  • Fits only for 18mm (male & female)

Finding an 18mm ash catcher that performs exceptionally well for all around daily use was easier than we might’ve thought. Most 18mm ashcatchers give out from poor design, but this Screws perc ash catcher was the perfect match for everyday use, due to its special and rare designed percolator. Aside from design, there were other important specs that we specifically wanted to check for. Take a look at the research below to see what was tested. 

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How Efficient Was The 18mm 90 Degree Ash Catcher In Keeping Out Burnt Ash?

"I clean my bong out at least 2x a week and thanks to this ash catcher it has now been reduced down to once a week and thats only if I smoke multiple times a day. I pull harder than most when inhaling which results in a lot of ash being stuck in my bong. I no longer have this issue and it has been amazing. This ash catcher worked perfect! "

Karmelia U.

This 18mm ash.catcher did a superb job at keeping and maintaining ash and small weed particles out of the bong. This is a vital factor in whether or not we consider an ash catcher to be thought of as quality. After all, its the main point of an ashcatcher! If it can’t even hold up to its bare minimum, there is no need for you to be using or wasting your money on one that isn’t functioning as it should. Because of the way this particular 18.8mm ash.catcher was designed, it was nearly impossible for anything to get through to the water chamber and into your bong piece, which is why we recommended this beauty.

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Was There any Water Leaks In This 90 Degree Ash Catcher?

As mentioned above, this 18mm ash catcher was perfectly designed in such a way that ash was never able to fall through any openings to the other side. This also included any water passing through, as the chances of any overflowing was little to none. If you fill the water up to the suggested amount, which means just enough to cover the percolation, there should be no reason for leaks or spillage. Last thing anyone wants is your bong piece overflowing from water traveling from your ash catcher, as this will certainly effect smoke circulation.

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Did The AshCatcher Deliver Optimal Percolation and Filtration?

"I've used basic ash catchers in the past and loved them for their purpose in filtering out ash. However I never had an ash catcher that also had a percolator equipped inside and mann did that make a difference!! Ash was kept out of my beaker bong and my hits were smooth as ever. You can bet Ill be using this extension for EVERY bong I hit."

Xavier N.

Lastly, how well did this ash catcher 18mm 90 degree function in terms of delivering a quality smoke inhale? We found that smoke was surprisingly cooled and smooth every hit. In fact, it was almost comparable to hitting a glass piece that had an ice chamber because of how clean the hit was. There was little to no drag in the percolation, and ash was easily filtered out, where it remained in the ash chamber. You can easily tell how well a percolator is by how well it decreases the harshness of smoke. 

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Research Behind Smoke Cartel Pulsar 90° Honeycomb Ash Catcher

18mm honeycomb ash catcher
  • Amazing Design
  • Entire product made from high-quality borosilicate glass 
  • Powerful Water Filtration
  • Works as a recycler (Added filtration and percolation)
  • No water leakage or spills (Properly designed)
  • Honeycomb Percolator + Showerhead percolator (Optimal water filtration and cooling of smoke).
  • 90° Angle for better balance and stability
  • Delivers smooth hits
  • Consistent
  • Great Pricing
  • Shipping arrived on time and packaging quality was great (free shipping within the US)
  • Almost all previous customers were happy
  • Only one color design

We always make a primary note to include a reasonable price point option with a fair and comparable amount of quality and function. There’s always something for everyone, and we took the time to research and review all we can, in order to provide you with the best selected options for your wallet, without losing any value. Keep reading below to see what factors were checked in order to bring us to our top pick.

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Did This 90 Degree Ash Catcher 18.8mm Properly Filter Out Ash and Debris?

The main focal point in all the ashcatchers we tested was how well they did on filtering out ash and debris. Without the basic function of filtering out burnt ash, you might as well invest your time and money elsewhere. This one of a kind Pulsar honeycomb ash.catcher scored very high on our scale from preventing any unwanted particles from getting through. Because of the very balanced glass design, it is almost impossible for anything to get past the opening where it connects to the water chamber in your bong piece. Even with the hardest pulls, nothing ever made its way even near the opening, before falling back down into the ash chamber.

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Does a Cheap 18mm AshCatcher Function Well?

"Ever since I bought this ash catcher I have been using it religiously on a day to day basis. I love what it does and I love how well it keeps my bong super clean!"

Nahalia U.

In terms of functionality, this honeycomb ash catcher did an exceptional job at serving its main purpose of filtering out particles as well as deliver smooth quality smoke. The ashcatcher honeycomb disc did a great deal of percolation without causing any overflowing or leakage to take place within your glass piece. This was why we decided to make this our top pick, because you can’t compare with the amazing price for its exceptional overall functionality.

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Was Smoke Efficiently Cooled With This 18.8mm 90 Degree Ash Catcher Bong Extension?

"I was surprised by how amazingly well this ash catcher made my hits feel as if I had put ice in my bong. It was smooth and very easy on my lungs which I loved. Using this on top of a bong that already has a perc does wonders."

Lexi D.

Again, filtering out burnt ash and weed particles isn’t the only thing worth noting when looking for a quality ash catcher. How well smoke was able to be cooled is very essential to your smoking experience as well, and thats why this piece was tested for coolness of smoke on a number of different trials and tests. The smoke was super clean and easy on your throat without having to pull so harshly.

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Research Behind The Premium BadassGlass 18mm Recycler Ash Catcher

90 degree 18mm ash catcher
  • Amazing Design
  • Entire product made from high-quality borosilicate glass 
  • Powerful Water Filtration
  • Equipped with showerhead perc
  • Functions as a recycler (Optimal percolation and filtration)
  • Consistent smoke quality
  • Multiple color options
  • Shipping arrived on time and packaging quality was great
  • Almost all previous customers were happy
  • Pricey

This 18mm ash catcher was by far the favorite one that we found, with the highest performance and function. It is versatile in design, and is also ideal for both the beginner smoker and the avid smoker. This 18mm ash catcher comes in different color options and even sizes if you find that your glass piece doesn’t suit an 18mm joint size. 

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Did This 18mm Recycler Ash Catcher Maintain A Properly Balanced Design?

"I had an ash catcher that was beautiful in design but due to the size, it caused my bong to completely tip over and break!! I was worried about that happening with this ash catcher but after a month of using it my bong never experienced that issue even when I don't take it off. I think its safe to say this was the perfect fit for my bong."

Amian H.

This 18mm recycler ash catcher from BadassGlass is wonderfully designed to hold up on its own without tipping or falling over. Proper balance is highly important for maintaining equal levels of weight distribution. It is not uncommon for users to purchase an ashcatcher that is either too big or too small for their bong piece, which causes your glass to be much more prone to falling to the side and breaking. You can be sure this 18mm glass ash catcher will do its job and remain sturdy. no matter if its on the table or on your glass piece.

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How Consistent Was This Glass Ash Catcher 18mm?

Consistency is another core factor in determining whether or not you have a high quality ash catcher. Nothings worse than having uneven quality smoke and inhales every time you decide to hit you water pipe or bong. That’s why this piece was tested for both constancy and regularity to ensure quality hits no matter how big or small. We packed large, medium, and small bowls to see how efficient the inhale was for each, and found that no matter the amount, the coolness of smoke was the same every time, for every toke. Not to mention no burnt ash or residue was ever found in the water chamber of the bong, which tells us, this 18mm ash catcher did a remarkable job at upholding its claim. 

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Did This Ash Catcher 18mm Deliver Optimal Smoke Quality and Filtration

"Nothing beats an ash catcher that also has a percolator within it. Thats double the benefit and worth every penny! I like to take giant hits and my hits have never been smoother than now. Without ice or a percolator in my bong, this ash catcher did the job. Thanks guys! "

Tiante J.

We’ve touched base multiple times on how vital it is for optimal smoke quality and filtration to take place in an ashcatcher. After all, a smooth and clean smoking experience is what we all aim to have, especially when adding another extension to your water pipe. This 18mm glass ash catcher cooled down the harshness of smoke so well, we couldn’t even feel the smoke upon inhalation until we exhaled. Double the percolation means double the cooling time. This let us know right away, that not only is the percolator performing at its highest level, but the filtration system was also functioning at its peak. 

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What is an Ash Catcher?

Understanding the basics of how to use an 18mm glass ashcatcher is important if you want to avoid breakage, spills, or leakage. Understanding what an ash catcher is and how it works is also vital to properly maintain and use your ashcatcher, for if you wrongly use your ash.catcher, it will only cause you distress and annoyance. The purpose of an 18mm ash catcher is to collect and trap in residue, burnt ash, or debris such as weed particles from getting into the water chamber of your bong or water pipe, and therefore allowing you to keep a clean bong. Any fallen particles will get pulled or suctioned into the ash catcher allowing it to remain inside the ash catcher water chamber, where it will stay separate from the rest of the water pipe.

How to Use an Ash Catcher 18mm AshCatcher

Using an 18mm ash catcher is simple:

  1. Replace your bowl piece from your bong, and switch it out with your 18mm ash catcher. 
  2. Fill water until slits from the downstem (if there is one present) or percolator is covered. Water should only be filled pass the percolation slit or hole so that there is just enough water to cover and allow for the formation of bubbles.
  3. Place your bowl on the other opening of the 18mm ash catcher.
  4. Fill bowl with cannabis and light up! 
  • Overflowing is caused from too much water input which leads to a number of malfunctions including smoke circulation. As long as water is correctly filled, and the 18mm ash.catcher is even placed where it isn’t causing your waterpipe to tip over, you are good to go! 

What Makes a High Quality 18mm Ash Catcher?

There are a number of factors that contribute to what makes an exceptionally high quality 18mm ash catcher. These components were  important to us, as we discovered that if any of these key elements were lacking in any way, shape, or form, it resulted in a faulty and unsatisfactory smoking experience. Keep reading below to see what details play an important role in what makes a premium grade ash catcher. 

Ash Filtration

We’ve said it again and again, as we can’t stress the importance of ash filtration within an ash chamber or catcher. It’s the primary objective of what this extension or add on is used for, so it is required that it lives up to its basic function. Testing the best 18mm ash catcher for this purpose, was fun and exciting for the team, and we were happy to find a product that was able to perform consistently in keeping unwanted ash out of your bong water chamber. 

Water Percolation

How well water is filtrated and percolated was the second most important on the list as without a proper filtration, you will most certainly experience harsh hitting smoke. This makes it awful on your lungs and yourself as hot smoke is inhaled, especially when you’re taking deep hits. All of our 18mm ash catchers were tested for optimal percolation and function to make sure that even the lowest priced ones were still living up to these standards. 

Coolness of Smoke

Coolness of smoke is definitely something to look forward to when using a high end quality glass ashcatcher. I believe we can all agree that hot harsh hitting smoke is a big no no, no matter your method of smoking. That clean and smooth tasting rip is always desired and preferred when smoking, so why not take the time to get yourself an ash.catcher that can give you those effects? There’s no need for an ice chamber when you have a proper percolation in place to ensure super cooled smoke. 

Why Trust Our Research on Finding the Best 18mm Ash Catcher

Everyone on our team was onboard when testing and finding the best 18mm ash catcher. From different sizes to styles, we were able to test and hand pick ones we knew were worthy of sharing with our users. 

With 10 ash catchers tested from each style and design, we tested them amongst each other over and over again so we could be sure of our results. To further extend our research, we even reached out to customers from all around the US to see and compare their complaints and concerns, so we could put them to the test ourselves.

We aim and strive to deliver and provide the best selections from our studies so that you can shop with not only the best knowledge and understanding, but also with confidence. Please feel free to share your experience with your 18mm ashcatcher and if you have any recommendations for other ash catchers, feel free to reach out to us so we can review the product and update this article. We thank you for your time.

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