Ash Catchers: What They Do and How to Choose the Right One

An ash catcher for your bong keeps your piece cleaner by trapping ash and resin before they reach the main water chamber, resulting in smoother, better-tasting hits and less frequent cleaning. Choosing the right ash catcher comes down to three key factors: joint size, joint angle, and percolator type, all of which must match your bong for proper fit and performance. 

What Does an Ash Catcher Do for Your Bong?

An ash catcher is a glass attachment that fits between your bowl and bong, catching ash and resin before they reach the main chamber. Wet models also add a second layer of water filtration, helping cool and diffuse smoke before it enters your bong. The result is cleaner glass, smoother hits, and less frequent cleaning.

Dry vs Wet Ash Catchers: Which One Do You Need?

Most buyers are choosing between these two setups before anything else.

Dry catchers work best when your bong already has serious percolation and you don't want extra resistance. They catch the ash and debris, nothing more.

Wet catchers add a second stage of water filtration. The smoke gets cooled and split apart inside the ash catcher before it even reaches your bong. Most smokers shopping for their first ash catcher want this one.

Ash Catcher Types by Percolators

Every wet ash catcher uses a percolator to cool and diffuse smoke. The main difference is how much filtration each design provides.

• Showerhead Perc: Uses multiple slits to create even diffusion with minimal drag. A great all-around choice for daily use and beaker bongs.
• Honeycomb Perc: A disc with dozens of small holes that produces fine bubbles for excellent diffusion. Ideal if you want smoother, flavor-focused hits.
• Recycler Perc: Continuously cycles water to keep smoke moving through fresh water while helping prevent debris from reaching your bong. Best for longer sessions.
• Tree Perc: Multiple slitted arms maximize diffusion for the smoothest hits, though they're harder to clean and create more draw resistance. Best for larger setups.

How to Choose the Right Ash Catcher

This is the section that saves you a return. Get these three specs wrong and the piece won't seat on your bong, regardless of how good the perc is. The following specs can help you find the right ash catcher for your bong.

Joint Size

Most bongs use either 14mm (14.5mm) or 18mm (18.8mm) joints. The labels are rounded from standard laboratory glass sizes, so match your bong's joint size before ordering. If you're unsure, check the product specs or measure the joint's inner diameter.

Joint Angle

• 45°: Most beaker bongs
• 90°: Most straight-tube bongs

Using the wrong angle can make the ash catcher sit incorrectly or leave your setup unstable.

Joint Gender

A male joint requires a female ash catcher, while a female joint requires a male ash catcher. Always match opposite genders for a proper fit.

Weight

Choose an ash catcher that suits your bong's size. Large multi-perc models can make smaller bongs top-heavy, so compact ash catchers are usually the better choice for pieces under 10 inches.

Top Picks from Smoke Cartel by Perc Type

1-Best Everyday Pick

Our top Pick: GRAV Phoenix Ashcatcher

The Phoenix is the most practical ash catcher GRAV makes, and it shows in the design. The removable top lets you dump out debris without soaking the whole attachment. You can also fill it with ice for an extra-cool session.

• 45 degree joint, 14.5mm, fits most beaker bong setups
• Removable glass-on-glass lid with built-in kickstand
• Easier to maintain than almost any other ash catcher on the market

Best for: Daily users with a beaker bong who want low-maintenance cleanliness.

2-Best Honeycomb Pick

Our top Pick: Pulsar 5-Arm Tree Perc Ash Catcher

An impressive attachment for the price. The five-arm tree percolator splits smoke into multiple streams before it enters your bong, delivering noticeably smoother pulls with a clean, open draw. Built with thick borosilicate glass and reinforced Dewar's joints.

• 14mm male joint, 45 degree angle, ideal for mid-size bongs
• Five slitted arms for high-contact diffusion
• Verified customer review: "This ash catcher is wonderful, functions as should and is supperrrrr durable"

Best for: Mid-size bong users who want serious diffusion at an accessible price point.

Best Recycler Ash Catcher

Our top Pick: Pulsar 90 Degree Honeycomb Showerhead Recycler Ash Catcher

This is the premium option in the lineup. It combines a showerhead percolator, a honeycomb disc, and a recycler loop into one attachment. Smoke is diffused twice before entering your bong, and the recycler keeps it from going stale. Customer review: "Smooth draw. Well built. Excellent customer service."

• 18.8mm joint, 90 degree, built for larger straight-tube setups
• Triple-stage filtration: showerhead, honeycomb disc, recycler
• Thick borosilicate glass with Pulsar logo engraving

Best for: Flavor-focused smokers running a large straight tube who want the most diffusion in a single attachment.

How Often Should You Clean an Ash Catcher?

You should clean your ash catcher every 1–3 sessions if you use it regularly. Because an ash catcher is designed to trap ash, resin, and debris before they reach your bong, it gets dirty much faster than the bong itself. The good news: because the ash catcher is removable, keeping it clean is far easier than cleaning a percolated bong.

• Change the water after every session
• Quick rinse with warm water after use
• Deep clean once a week: fill with isopropyl alcohol (91% or higher) and coarse salt, shake for 30 seconds, rinse thoroughly