Quick TL;DR Overview
| Product | Best For | Standout Feature |
|---|---|---|
| Golden Greek Submarine | Tinkerers who run multiple juice styles | Independent air and liquid control rings |
| Reload Vapor Ammo RBA | Set-and-forget flavor chasers | 4.5ml capacity, rock-solid consistency |
| Suicide Mods Tallboy | Stubby AIO users who hate refilling | 8.5ml dual-tank with on-device transfer |
| UNKWN GlichTi Titanium | Advanced users chasing max flavor | Condensed chamber for hyper-intense flavor |
I’ve spent more money on Boro bridges than I care to admit. Some of them collected dust after a week. A few became permanent fixtures in my rotation.
But a select few of them? I’d genuinely panic if I couldn’t replace them.
That’s what this list is about. Not a roundup of everything new and shiny, but the specific bridges, RBAs, and tanks that actually changed how I vape day-to-day.
If you’re running a Boro mod (these are the boro mods I’m using right now) and wondering where to put your money, here’s where I’d put mine.
Best Boro Bridge, RBA & Tanks
1. The Golden Greek Submarine Boro Bridge: One Bridge, Every Juice
Here’s my honest take on most Boro bridges: they’re optimized for one thing. One juice viscosity, one airflow style, one type of build.
The moment you swap to a thicker dessert liquid or want to open things up a bit, you’re reaching for a different bridge. That got old for me fast.
The Golden Greek Submarine was the first bridge that made me stop doing that.
The thing that sets it apart is the dual control setup: an independent air ring and a separate liquid control ring that work completely independently of each other.
I know that sounds like a small detail, but in practice it’s a game-changer.
When I switched from a thin 50/50 salt nic to a heavy VG dessert juice, I just dialed back the liquid flow ring and kept vaping.
No flooding. No dry hits. No swapping bridges.
The deck is unusually spacious for the Boro format. It’s square, which is rare, and gives you actual room to work when you’re setting a coil.
I don’t consider myself a build wizard and I’ve never felt cramped on it. Coil placement goes in clean and consistent every time.
The sandblasted stainless steel construction feels exactly like what it is: a high-end piece of kit. This isn’t a bridge that feels premium in photos and cheap in hand. It holds up to that first impression.
Is there a learning curve? Yeah, a bit. If you’re coming from a simpler bridge with a single airflow option, suddenly managing two control rings takes some adjustment.
And because it’s newer, you won’t find as many community “recipes” for builds and pins as you would with more established bridges. You’ll have to do a bit of your own experimenting.
But once you’ve spent an afternoon dialing it in for your setup, you’ll wonder how you were managing without it.
For me, this one lives in whichever mod I’m running hardest on any given week.
Who this is for: If you rotate through multiple juices with different viscosities, or you’re tired of keeping a separate bridge for every style, the Submarine is the one bridge that genuinely handles it all.
2. Reload Vapor ReLoad Ammo RBA Boro Tank: The One I Grab When I Just Want to Vape
Some days I don’t want a project. I don’t want to experiment with pins or tweak airflow or wonder if I wicked it slightly wrong.
I just want to build a good coil, fill the tank, and vape without thinking about it until bedtime.
That’s exactly what the Reload Vapor Ammo RBA is for, and it does it better than anything else I’ve used in this format.
The flavor is the first thing you notice.
Dense, consistent, and locked in once you hit the sweet spot for your coil and wicking.
I’ve had sessions on this tank where I genuinely stopped mid-vape to think about what I was tasting because it was pulling so much detail out of a juice I’d been running for months.
That sounds dramatic but it’s just what a well-designed single-coil RBA does when everything is dialed in.
The 4.5ml capacity is a bigger deal than it sounds. A lot of Boro tanks compromise hard on capacity to fit the form factor and you end up refilling two or three times throughout the day.
At 4.5ml I’m getting through a full day of regular vaping without touching a bottle. That alone puts it in a different category for daily carry.
Build quality is where Reload Vapor earns its reputation. Stainless steel and PCTG construction, tight tolerances, threads that feel smooth every single time.
I’ve never had a leak from this tank in normal use. The O-rings do exactly what they’re supposed to, and the whole thing cleans up and rebuilds quickly without any drama.
I’ll be straight about the downsides: it’s single-coil only, which rules it out if you want dual-coil density. But the actual draw is smooth and the vape quality is excellent, so for me it’s a non-issue.
The price puts it in the luxury bracket. It’s not cheap. But this is genuinely one of those cases where the quality justifies the cost, and I’ve never felt buyer’s remorse on it.
Who this is for: The vaper who puts the time into a good single-coil build and then wants to just use the thing. If you value day-to-day reliability and flavor consistency over maximum fiddling options, this is the only tank you’ll ever need.
Fun Fact: The Boro tank format takes its name from “borough” style mods, a compact AIO design popularized by the Billet Box that created an entirely new ecosystem of interchangeable bridges and accessories. What started as a niche modder’s format has grown into one of the most active communities in vaping.
3. Suicide Mods Tallboy RBA Tank
Let me get the bad news out of the way upfront: the Tallboy is discontinued. You’re looking at remaining retailer stock and the secondhand market. I know, I know. But hear me out on why I still think it belongs on this list.
If you run a Stubby AIO, this tank changes everything about how that device works.
The Tallboy runs 8.5ml of total capacity across a two-section design: a main tank on top and a secondary reservoir underneath.
When the top section gets low, you flip the mod, pull a lever, and the juice transfers up from the bottom tank. That’s it.
No opening anything. No bottles in your pocket. No planning your day around when you’ll need to refill.
I used to carry a small bottle of juice everywhere. With the Tallboy on my Stubby, I stopped doing that entirely.
It’s compatible with most Boro bridges too, which makes it more of a platform upgrade than a single accessory.
Whatever bridge you’re already running can likely drop right in, so you’re not starting from scratch. You’re just massively extending the capability of your existing setup.
The size is a genuine consideration. The dual-tank layout makes the setup bulkier than a standard Boro configuration, and this can cause minor voltage drops (emphasis on: “can”). Worth knowing before you buy. And it doesn’t come with a bridge either, so factor that into your budget.
But for travel, long days out, or just wanting to stop thinking about your vape for hours at a stretch, nothing I’ve used in the Boro space has solved the capacity problem as cleverly as this.
Who this is for: Stubby AIO users who hate refilling or want a true all-day setup. If you can find one at a reasonable price, I’d genuinely recommend picking it up.
4. UNKWN GlichTi Titanium Boro RBA: The Flavor Monster
I want to describe the GlichTi as “subtle” but that would be a lie. This thing is not subtle. It is a flavor machine, and if you point it at the wrong juice on a bad day it will absolutely overwhelm you.
That’s not a criticism. That’s just you learning what it does.
The GlichTi is machined in the USA from titanium, which gives it a polished look and a noticeably lighter weight than stainless equivalents.
But the hardware story isn’t really about the materials. It’s about the condensed chamber and the internal juice channel design, which work together to compress the vapor path and deliver flavor at an intensity I genuinely haven’t experienced from other Boro bridges.
The first time I ran a complex liquid through it, I got notes I hadn’t picked up on the same juice from other setups.
That’s what a condensed chamber does: it focuses everything.
The wick stays evenly saturated, heat buildup is kept in check, and the draw stays consistent from the first pull to the last.
The airflow is tunable from tight MTL all the way up to a comfortable DL via interchangeable pins, and the 4.7mm chimney bore means you’ve got room to run larger, more complex builds.
This isn’t a bridge for one style.
Here’s where I’ll be honest about the tradeoffs: if you run sweet, commercial liquids, the GlichTi can feel like too much of a good thing. It amplifies everything, including the parts of a juice that don’t hold up well under scrutiny.
I’d recommend starting with cleaner or more complex juices while you find your footing.
It’s also genuinely expensive, especially in the titanium configuration. You’re paying for USA machining, premium materials, and a very specific performance outcome.
If that’s aligned with what you want, it’s worth every penny. If you’re still figuring out whether Boro is your thing, start somewhere else.
Who this is for: Advanced users who know their coil preferences, like to experiment with builds, and want to extract maximum flavor from quality liquids. If flavor is your primary metric for a good vape, this is the bridge to buy.
Fun Fact: Titanium is roughly 45% lighter than stainless steel at comparable strength, which is why it’s become a popular premium material option in high-end vape hardware. The GlichTi uses this to meaningful effect: you’ll notice the weight difference immediately if you’ve been running a steel bridge.
Wrapping Up
Every bridge and tank on this list earns its spot for a specific reason.
- The Golden Greek Submarine is my go-to when I’m rotating juices and need flexibility.
- The Ammo RBA is what I reach for when I want a reliable, no-fuss day of great flavor.
- The Tallboy is the tank I’d buy again and again. If you’re a Stubby user, it’s essential. But it pairs with most modern boro mods too.
- And the GlichTi is the one I pull out when I want to actually pay attention to what I’m vaping.
None of these are beginner purchases, and none of them are cheap.
But if you’re serious about getting the most out of your Boro mod, any one of these will level up your setup in a way that’s immediately noticeable.
For more deep dives into high-end hardware, check out our vape reviews section and our best vapes picks for what’s worth your money right now.
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FAQ You, Man!
What is a Boro bridge and why does it matter?
A Boro bridge is the rebuildable atomizer component that sits inside a Boro-format AIO mod. It holds your coil and wick, connects to the tank for juice feed, and largely determines flavor quality and airflow character. Choosing the right bridge for your style makes a bigger difference to your vape than almost any other variable in the setup.
Is the Suicide Mods Tallboy still worth buying if it’s discontinued?
If you’re a Stubby AIO user, yes. The 8.5ml dual-tank capacity and on-device juice transfer system are genuinely useful features that haven’t been replicated elsewhere. Check remaining retailer stock and reputable secondhand marketplaces, and just be aware that support and spare parts won’t exist long-term.
Is the UNKWN GlichTi suitable for beginners?
Not really. It’s a bridge that rewards experience: knowing your coil preferences, understanding how airflow affects flavor, and being comfortable experimenting with pins and builds. If you’re new to rebuildables or Boro setups generally, start with something more forgiving and work up to the GlichTi.
How does liquid control on the Golden Greek Submarine actually work?
There’s a dedicated ring on the bridge that opens or closes the juice feed ports when you rotate it. Turning it down restricts how much liquid reaches the wick, which lets you run thicker, higher-VG juices without flooding. Turning it up increases flow for thinner liquids. It works independently from the air ring, so you can fine-tune both variables separately.
Can I run the Reload Vapor Ammo RBA in temperature control mode?
The Ammo RBA supports a range of coil types including TC-compatible wire, so you can run temperature control if your mod supports it. Cotton wicking is what it’s optimized for, and most users get the best results pairing it with a quality organic cotton and a well-broken-in coil.
