$ 119.95
If you've ever wondered why some bongs deliver incredibly smooth, cool smoke while others feel harsh no matter what you do, the answer comes down to percolators. Multiple percolation chambers break apart your smoke into smaller particles, forcing it through water multiple times before you inhale. This process cools the smoke significantly and removes more contaminants. The 18" Multi-Perc XL St is built specifically to maximize this effect without overcomplicating things. We've tested rigs with single percs, double percs, and everything in between, and there's a noticeable difference in smoothness once you hit this multi-perc level.
The engineering here is where it gets interesting (and yes, we know talking about bong construction might sound nerdy, but it matters for your smoking experience). Multiple filtration stages mean smoke passes through water in different chambers, each one cooling and filtering separately. The extra surface area and water contact creates a smoother draw than straight-tube or basic beaker designs. At 18 inches tall, you get substantial filtration capacity without the awkwardness of a massive 24-inch piece. The XL designation indicates more generous chamber volumes, which means better water capacity and more cooling power per hit.
Built from pharmaceutical-grade borosilicate glass, this rig handles daily use and temperature stress with ease. The female 18.8mm joint fits standard bowls and accessories, so you're not locked into proprietary parts. Available in Blue and Light Blue, both colorways look clean and professional. This isn't a novelty piece - it's engineered for people who smoke regularly and actually care about the quality of their sessions.
The 18" Multi-Perc XL St sits in the sweet spot between beginner and enthusiast gear. It costs more than basic bongs but way less than artistic hand-blown pieces. What you're paying for is functional engineering - multiple percolation stages that genuinely improve your smoking. Compared to single-perc designs, multi-perc rigs deliver noticeably cooler, smoother smoke. We've found that users who switch from single-chamber bongs to multi-perc setups almost never go back. The difference is that pronounced. Build quality from the manufacturer is consistent, and the design has proven itself over countless user sessions.
| Height | 18 inches |
| Percolators | Multiple stages (XL capacity chambers) |
| Material | Pharmaceutical-grade borosilicate glass |
| Joint Size | Female 18.8mm |
| Joint Type | Standard ground glass (female) |
| Color Options | Blue, Light Blue |
| Water Capacity | 6-7 liters (XL chambers) |
| Includes | Flower bowl (18.8mm male joint) |
Once someone experiences quality multi-perc filtration, they understand why water pipes cost more than basic bongs. The smooth, cool smoke is genuinely different - and in a good way. Regular users keep a multi-perc rig as their main piece because it just works better for extended sessions. The XL water capacity means you can take several hits before needing to dump and refill the water. We recommend daily users fill the percolators with fresh water before each session, since stale water doesn't filter as effectively.
The blue colorways (especially the lighter shade) show the water level clearly, so you'll notice when it's getting low and needs topping up. Temperature control is another benefit - with multiple chambers constantly cycling water, the smoke stays cool even when you're pulling repeatedly. People who've worked their way up from cheap bongs to this level often mention they suddenly understand why smoothness matters. It's not just aesthetics. Smoother smoke means less coughing, easier breathing, and genuinely more enjoyable sessions.
Pro Tip: Fill the lowest chamber first, then work your way up through the other percolators. This ensures even water distribution and prevents overflow when you're adding water. Different percs might need different water levels - the lowest might be fuller while upper chambers need just enough to function. Experiment to find your optimal setup.
If you're smoking regularly (several times a week or more), upgrading to a multi-perc rig makes tangible difference in your experience. You'll notice smoother hits immediately, and over weeks and months, your throat and lungs will thank you for the improvement in filtration. The jump from single-chamber to multi-perc is bigger than most gear upgrades - it's legitimately transformative.
Medical patients benefit significantly from multi-perc filtration. Smoother smoke means more comfortable sessions, especially for those using cannabis therapeutically for extended periods. The improved cooling reduces irritation, and the advanced filtering removes more harshness. If medical use is important to you, investing in proper multi-perc equipment pays off in comfort and consistency across sessions.
Collectors who appreciate craftsmanship find multi-perc rigs fascinating to study and use. The engineering is clever, the glass work is solid, and the functionality is honest - no unnecessary complexity, just smart design solving real problems. Whether you're building an collection or seeking a single perfect daily driver, this rig delivers on both fronts.
This varies by design, but the general rule is: fill the lowest chamber so water just starts to come out of its percolator holes or tubes, then work your way up. Each chamber might need different amounts - the bottom might be 2 inches deep while upper ones need just a half inch. You'll figure out the sweet spot after a few tries. We've found that experimentation is key because too much water creates resistance and makes the hit harder, while too little doesn't filter effectively. Start conservative and add more water until you find your preference. The blue color makes it easy to see the water levels clearly.
This 18" Multi-Perc XL specifically uses multiple separate percolation chambers (hence "multi-perc") rather than just one or two. That means your smoke gets filtered more thoroughly because it passes through water in different chambers successively. The XL designation means larger chamber volumes, which holds more water and cools smoke more efficiently. Compare it to a beaker bong (single chamber) and you'll notice the cooler, smoother hits immediately. The engineering is more complex but absolutely worth it if you care about filtration quality. Think of it as the difference between a basic water filter and a multi-stage filtration system.
Yes - you get a standard 18.8mm flower bowl that fits into the female joint. The bowl extends down into the water, so it serves dual purposes. If you want to swap it for a different bowl style or use a separate downstem, any 18.8mm male joint piece will work. Most people find the included bowl adequate for regular use, though some prefer upgrading to thicker glass or different shapes. Replacement bowls are inexpensive and widely available, so you're not locked into the stock one forever.
You'll feel slightly more resistance with multi-perc designs compared to straight-tube bongs - that's just physics. More water contact means a bit more work to pull. But here's the thing: the increased cooling and smoothness more than makes up for it. Most users find the trade-off completely worth it. The XL chamber design of this particular model minimizes resistance compared to other multi-percs by providing generous paths through each stage. In our experience, anyone who has used both will take the slight resistance in exchange for significantly smoother smoke.
Ideally, you should change the water between sessions - certainly before your next day of smoking. Stale or contaminated water defeats the purpose of having quality filtration. If you're a daily smoker, fresh water every morning is standard. Heavy session smokers might dump and refill between multiple sessions in the same day. The darker the water gets, the more work your next pulls have to do filtering. We recommend treating water changes as part of your routine - it takes two minutes and dramatically improves flavor and filtration effectiveness. Never leave water sitting in there for more than 24 hours.
Yes - percolator tubes and chambers collect buildup over time, especially if you don't change water regularly. This is why regular cleaning is important. Use the isopropyl alcohol and salt method monthly, letting the solution soak in the affected chambers for 30+ minutes if they're really gunked up. The good news is that the multi-perc design usually lets you access most chambers for cleaning. You might need thin brushes or pipe cleaners for deep work in tight tubes, but it's totally doable. Prevention through regular water changes and weekly rinses keeps buildup minimal and means deep cleaning is less frequent.
Multi-perc cleaning is more involved than single-chamber bongs because you have multiple water pathways to maintain. Start with daily fresh water changes - this is the single best prevention against buildup. After several days of use, you'll want a proper cleaning. Fill the lowest chamber with a 50/50 mix of isopropyl alcohol and water, add coarse salt, seal the top with your hand, and shake vigorously. Let the solution work its way through the percolators, agitating every few minutes for about 5-10 minutes total. Drain and repeat with fresh alcohol and salt solution, then rinse multiple times with hot water until completely clear.
For stubborn buildup in percolator tubes, use pipe cleaners or thin brushes dipped in alcohol. Work them through each tube slowly and carefully. Some people prefer hot water and denture tablets as an alcohol alternative - either method works. The key is being patient and thorough because residue in percolators directly impacts functionality and flavor. A monthly deep clean with extended soaks keeps everything operating at peak performance. Store with only air inside - never let water sit for extended periods between uses, as stagnant water grows bacteria and creates odors.
Note: Handle the rig with extra care when cleaning since you'll be disassembling and working inside multiple chambers. Avoid thermal shock by letting the rig cool to room temperature before cleaning with cold liquids. Never use the dishwasher, and avoid metal scrubbers that can scratch or crack the glass. Borosilicate is durable but not indestructible - treat it with respect and it'll last many years.
Upgrade your multi-perc rig with premium bowls from our Accessories collection. Ready to try concentrate dabbing? Check out our Dab Rigs for dedicated dab equipment. Keep your rig in top condition with supplies from our Cleaning Supplies section. Explore more water filtration styles in our complete Bongs & Water Pipes collection.
All smoking accessories & glass
Save 10% on bongs, rigs, pipes, bangers, torches & more from our full smoke shop collection.
Shop Now & Save 10%