Flum UT Bar Pro 50K — Overview
The Flum UT Bar Pro 50K is a dual-flavor disposable vape that packs two independent e-liquid tanks into one device — tap once to switch between flavors without carrying two separate vapes. It delivers up to 50,000 puffs in Eco mode or 25,000 in Turbo mode, powered by a 760mAh USB-C rechargeable battery and advanced mesh coil technology. The digital screen displays battery life, active flavor channel, and puff count in real time. For an in-depth breakdown, read our Flum UT Bar Pro 50K review.
What makes the UT Bar Pro genuinely unique is the squishy liquid-filled back panel — a stress-relief feature built into the device body that doubles as a fidget toy. It's an unexpected design choice that sets the UT Bar apart from every other high-puff disposable. With 43 dual-flavor combinations ranging from classic pairings (Mango/Strawberry, Blue Razz/Lemonade) to experimental combos (Root Soda/Vanilla, Cola Ice/Cherry), there's a combination for every palate. Explore the full Flum range on our Flum Vape brand page or compare Flum against competitors in our Flum vs RAZ comparison.
Full Specifications
| Spec | Details |
|---|---|
| Brand | Flum |
| Model | UT Bar Pro 50K |
| Puff Count | Up to 50,000 (Eco) / ~25,000 (Turbo) |
| Nicotine Strength | 50mg/mL (5%) Salt Nicotine |
| Tank System | Dual Independent E-Liquid Tanks |
| Battery | 760mAh Rechargeable |
| Charging | USB Type-C Fast Charging |
| Coil | Mesh Coil |
| Display | Digital Screen (Battery / Flavor / Puff Count) |
| Power Modes | Eco (max puffs) / Turbo (intense flavor) |
| Flavor Switch | One-Tap Toggle Between Dual Flavors |
| Special Feature | Squishy Liquid-Filled Stress Panel |
| Activation | Draw-Activated |
| Flavor Combinations | 43 |
Why Choose the Flum UT Bar Pro 50K
Two Flavors, One Device
Each UT Bar Pro 50K contains two separate e-liquid tanks with different flavors. Tap the switch button to toggle between them mid-session — no waiting, no cross-contamination. This solves the most common disposable problem: flavor fatigue. When one flavor starts feeling repetitive, switch to the other for variety without buying a second device. Check all Flum flavors to find your perfect pairing.
50,000 Puffs in Eco Mode
Eco mode optimizes power draw for maximum longevity — up to 50,000 puffs across both tanks combined. Turbo mode doubles the wattage for denser, warmer clouds with stronger flavor, cutting the total to approximately 25,000 puffs. Reviewers note that vapor quality stays consistent even past 40,000 puffs in Eco mode, which is unusual for high-puff disposables.
Squishy Stress-Relief Back Panel
The soft, liquid-filled pouch on the back of the device is a built-in fidget feature — press it, squeeze it, mold it between draws. It sounds gimmicky, but it's proven popular with vapers who want something to do with their hands between puffs. No other vape brand has tried this.
43 Dual-Flavor Combinations
The lineup includes classic combos (Blue Razz/Lemonade, Mango/Strawberry), creative pairings (Root Soda/Vanilla, Cola Ice/Cherry), and Flum's signature abstract blends (Clear/Clear, Naked/Spring Water). With 43 options, finding a match for your taste preferences is straightforward. See our Flum UT guide for help narrowing down your pick.
Mesh Coil Consistency
The mesh coil heating element distributes heat evenly across the e-liquid surface, preventing hot spots and dry hits. Combined with Flum's salt nicotine formula, the result is smooth, flavorful vapor that doesn't degrade noticeably over the device's long lifespan. Need charging tips? See our Flum charging guide.
Popular Flavor Combinations
- 🔥 Blue Razz / Lemonade — tangy berry meets citrus tartness
- 🔥 Mango / Strawberry — tropical sweetness paired with berry
- 🔥 Aloe Grape / Aloe Watermelon — refreshing aloe duo with fruit
- 🔥 Strawnana / Gelato — smoothie meets creamy Italian ice
- Cool Mint / Icy Mint — dual menthol with different cooling profiles
- Passionfruit / Mango — tropical pair with tangy-sweet balance
- White Peach / Lemon Head — stone fruit meets sour candy
- Cola Ice / Cherry — soda-inspired dessert combo
- Root Soda / Vanilla — root beer float in vape form
- Tobacco / Gold Tobacco — traditional duo for tobacco vapers
Full 43-combo list with tasting notes available on our Flum flavor guide. Wondering how the UT Bar stacks up against Adjust? See our Adjust MyRusher vs Flum UT Bar comparison.
How to Use
- Unbox and remove seals from the mouthpiece and USB-C port.
- Inhale to activate — draw-activated, the screen lights up showing battery, active flavor, and puff count.
- Switch flavors — tap the flavor switch button to toggle between the two tanks. The screen indicates which flavor is active.
- Toggle power mode — switch between Eco (extended life) and Turbo (intense flavor) as desired.
- Recharge via USB-C when the battery drops. Fast charging minimizes downtime.
- Dispose responsibly when both tanks are empty.
Frequently Asked Questions
Is this product authentic?
Yes. VapesOnlineShop is an authorized US distributor. Every Flum UT Bar Pro 50K ships from our Memphis, TN warehouse with sealed original packaging. Flum products include verification codes for authenticity checking.
How long does shipping take?
Orders placed before 2 PM CST ship same day from Memphis, TN. Standard delivery takes 3-5 business days within the continental US. Orders over $80 qualify for free shipping. Adult signature (21+) required at delivery.
How does the dual flavor system work?
The UT Bar Pro 50K has two completely separate e-liquid tanks with independent coils. Pressing the flavor switch button toggles which tank feeds to the mouthpiece. There's no mixing or cross-contamination — each flavor stays pure. The digital screen shows which flavor channel (1 or 2) is currently active.
What's the squishy back panel for?
It's a liquid-filled stress-relief pad built into the back of the device. You can press, squeeze, and mold it between draws. It's a unique fidget feature designed to give you something tactile to do when you're not actively vaping. It doesn't affect device performance.
How does this compare to the Flum UT Bar Pro 25K?
The Flum UT Bar Pro 25K offers the same dual-flavor system in a smaller form factor with 25,000 puffs (Eco). It's lighter, more portable, and less expensive — ideal if you want the dual-flavor experience without the full 50K commitment. Both use the same mesh coil technology and flavor combinations. See our Flum price guide for cost comparisons across the lineup.
⚠️ WARNING: This product contains nicotine. Nicotine is an addictive chemical. You must be 21+ to purchase vaping products. VapesOnlineShop is an independent authorized US distributor and is not affiliated with Flum.
Frequently Asked Questions
Is this product authentic?
Yes. VapesOnlineShop is an authorized US distributor. Every Flum UT Bar Pro 50K ships from our Memphis, TN warehouse with sealed original packaging and verification codes.
How long does shipping take?
Orders placed before 2 PM CST ship same day from Memphis, TN. Standard delivery takes 3-5 business days. Orders over $80 qualify for free shipping. Adult signature (21+) required.
How does the dual flavor system work?
Two completely separate e-liquid tanks with independent coils. Press the flavor switch button to toggle which tank feeds to the mouthpiece. No mixing or cross-contamination — the screen shows which channel is active.
What's the squishy back panel for?
It's a liquid-filled stress-relief pad built into the back. Press, squeeze, and mold it between draws. A unique fidget feature that doesn't affect device performance.
How does this compare to the Flum UT Bar Pro 25K?
The UT Bar Pro 25K offers the same dual-flavor system in a smaller, lighter form factor with 25,000 puffs. Both use the same mesh coil and flavor combinations.
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