13.5″ MONARK DOUBLE STEREO MATRIX BONG

The 13.5″ MONARK Double Stereo Matrix Bong is a high-end glass water pipe for smokers who care about smooth pulls, serious diffusion, and clean design. Built by Wyn Brands and priced for daily drivers who actually use their glass, this piece stands 13.5 inches (343mm) tall with an 18mm joint and a double stereo matrix perc that turns smoke into a wall of tiny bubbles.

If you’ve been wanting a bong that rips hard while still going easy on your lungs, this one’s made to be the centerpiece of your lineup, not just background glass on the shelf.

Why You’ll Love It

• Smoother, cooler hits — Double stereo matrix percs create tons of tiny bubbles, giving smoke maximum contact with the water before it reaches you.
• Big rips with control — The can-style body and diffusion stack let you clear a full chamber without that harsh, “why did I do that” throat burn.
• Stays upright when things get clumsy — The sturdy, footed base keeps it planted so you’re not babysitting it every time someone passes it back.
• Ready out of the box — Comes with an 18mm flower bowl so you can drop it into rotation right away.
• Looks as good as it hits — Sandblasted logo and clean color accents give it that “real heady shop” look without having to baby it like art glass.
• Build quality you don’t have to stress about — Bridged joint design adds support right where most bongs crack first.

Best For

This Monark Double Stereo Matrix is ideal if you’re the friend who always hosts and wants a piece that can keep up with back-to-back bowls without turning everyone’s lungs into toast. It’s also a smart upgrade if you’re moving up from a basic straight tube and want to feel what real diffusion does to your flower.

Pair it with a solid non-slip dab mat or bong mat if you want extra security on glass tables, cluttered desks, or “party mode” coffee tables.

How to Use It

Function on this piece is all about those double stereo matrix percs. As you pull, smoke travels down into the lower chamber and hits the first matrix, instantly breaking into a cloud of micro-bubbles. It then moves up into the second matrix perc, repeating the process and cooling even more before it stacks in the can and moves up the neck.

Fill the base so the matrix percs are properly covered, but not flooded; you want those slits and holes to fire freely, not fight water resistance. Start with a conservative water level and adjust until you feel the pull get nice and chuggy without splashing.

Drop in the included 18mm bowl, pack your flower, and you’re ready to go. If you’re running concentrates through this with a banger instead of the stock bowl, treat it like any other flower bong you convert into a dab rig and consider adding a directional cap from our carb caps lineup for better vapor control.

When you’re done, a quick rinse right away keeps that stereo matrix from gunking up and makes deep cleaning a lot less annoying later.

Specifications

Fit & Compatibility

This Wyn Brands Monark runs a standard 18mm female joint, so it plays well with most 18mm male bowls, ash catchers, and bangers. If you’ve already got favorite bowls or attachments, just double-check they’re 18mm and you’re good.

If you decide to turn this into a hybrid flower-and-concentrate setup, it pairs nicely with smaller rigs, nectar straws, and other specialty pieces from our nectar collectors section when you want to keep your terp gear separate from your flower glass.

Cleaning & Care

Let the bong cool down before you mess with it. Empty the water, then rinse with warm water to knock loose ash and light buildup. For deeper cleans, soak the inside with isopropyl alcohol, rinse thoroughly with water, and let it dry fully before you put it back in rotation.

To keep reclaim from building up as fast, some people dedicate a separate piece or a smaller rig from our silicone bongs & rigs collection for heavy concentrate use and keep glass like this mainly for flower.

FAQ

• Does this bong come with a bowl?
  Yes. It includes an 18mm flower bowl that matches the joint perfectly, so you don’t have to dig around for a spare just to try it out.
• Can I use this with concentrates?
  You can swap the flower bowl for an 18mm male banger and use it for dabs if you like. Just know that heavy concentrate use will gunk it up faster, so some people prefer a separate dedicated dab setup plus proper dab tools to keep things tidy.
• Is 13.5 inches too big for a daily driver?
  For most people, 13.5 inches (343mm) is that sweet spot: tall enough to stack bubbles, small enough to handle on the couch or at a desk. It’s not a mini travel piece, but it’s very comfortable for everyday use.
• How fragile is the joint and perc area?
  The bridged joint gives extra support to the area that typically takes the most stress, and the matrix percs are tucked safely inside the can. It’s still glass, so don’t treat it like a football, but it’s absolutely meant to be used, not just stared at.
• What kind of water level works best?
  You’ll want both stereo matrix percs covered, but not buried. Add water slowly, take a test pull, and stop when it stacks bubbles without splashing into the neck. If you hear it struggling or feel too much drag, you’ve probably overfilled it and should pour a little out.
• What’s the advantage of a double stereo matrix over a basic downstem bong?
  A basic downstem gives you a few large bubbles; a stereo matrix gives you tons of small ones. More bubbles means more surface area, more cooling, and smoother hits. The double stack just doubles down on that effect, which you’ll notice right away on bigger clears.
• How should I store it when I’m not using it?
  Empty the water, give it a quick rinse, and let it dry before putting it away. If you’re packing it up with other gear or travel cases, keeping spare bowls, papers, or accessories organized in proper storage & packaging helps protect both the bong and your stash.

If you’re ready to move beyond basic glass and actually feel what good diffusion does for flavor and comfort, the 13.5″ MONARK Double Stereo Matrix Bong is that upgrade piece you’ll keep in rotation for years.