Oxbar G42K
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$35.00
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The OXBAR G42K by Rocky Vapor packs more user-adjustable controls into a disposable than any other device in the lineup. It holds 20mL of e-liquid at 20mg/mL nicotine salt, delivers up to 42,000 puffs, and gives you three things most disposables don't: adjustable nicotine output, adjustable wattage, and adjustable airflow — all controlled through the device and displayed on a Mega LCD screen. The triple mesh coil and 900mAh rechargeable battery round out a spec sheet that puts this closer to an open pod kit than a traditional disposable.
Specs
| Spec | Details |
|---|---|
| E-Liquid Capacity | 20mL (prefilled) |
| Puff Count | Up to 42,000 |
| Nicotine Strength | 20mg/mL (nicotine salt) — adjustable output |
| Coil Type | Triple mesh coil |
| Battery | 900mAh (USB-C rechargeable) |
| Display | Mega LCD — wattage, e-liquid level, battery level |
| Adjustable Controls | Nicotine output · Wattage · Airflow |
| Activation | Draw-activated |
| Weight | ~95g |
| Flavours Available | 35 |
Adjustable Nicotine — A First for Disposables
The G42K's most unusual feature is adjustable nicotine output. While every disposable in this lineup is prefilled at 20mg/mL, most deliver that nicotine at a fixed rate. The G42K lets you adjust the nicotine intensity with a button press — lowering or raising the perceived strength of each draw without changing the liquid itself. This works by controlling how much vapour (and therefore nicotine) is delivered per puff.
For vapers who sometimes want a stronger hit and other times want something lighter — without carrying two devices or switching flavours — this is a meaningful feature that no other disposable on this page offers.
Adjustable Wattage
In addition to nicotine control, the G42K lets you adjust wattage directly. Higher wattage produces denser vapour, warmer draws, and more intense flavour. Lower wattage gives a cooler, smoother draw and extends the life of the device. The current wattage setting is shown on the Mega LCD screen in real time.
This replaces the typical "Normal vs. Boost" mode toggle found on other disposables — instead of two preset levels, you get finer control over the output.
Triple Mesh Coil
The G42K uses three mesh heating elements running in parallel. Triple mesh heats e-liquid across a larger surface area than dual mesh designs, producing fuller flavour extraction and denser vapour. In the VTW disposable lineup, only the Elfbar FS70K also uses a triple mesh coil — everything else runs dual or single mesh.
Mega LCD Screen
The 3D curved display shows three data points in real time: your current wattage setting, your remaining e-liquid level, and your battery charge. This is more information than most disposable screens provide — the wattage readout in particular is unique to the G42K in this lineup, since other devices with modes don't show the actual wattage value on screen.
35 Flavours
🎨 See All 35 Flavours
Apple Kiwi Melon
Banana Vanilla
Blackberry
Blackberry Coconut Ice
Blue Razz
Blueberry Orange
Cactus Fig Ice
Cherry Lemon
Clear
D.R.P.
Double Mint
Grape Ice
Green Grape Lemon
Green Storm
Kiwi Mint Ice
Lychee Lime G
Lychee Mango Melon Ice
Mango Passionfruit
Mango Peach
Mint G
Peach Berry
Peach Blue Raspberry
Peach Strawberry
Raspberry Blueberry Ice
Raspberry Grape Lemon
Raspberry Mango
Raspberry R Ice
Sour Double Mango Ice
Sour Peach G
Strawberry Grape Ice
Strawberry Watermelon Ice
Super Sour Pineapple
Watermelon Cantaloupe Ice
Watermelon Raspberry
White Grape
Notable non-iced options include Banana Vanilla (dessert profile), Blue Razz, Clear (flavourless/unflavoured), Mango Passionfruit, Peach Berry, Peach Strawberry, Raspberry Mango, Watermelon Raspberry, and White Grape. The G42K has one of the wider non-iced selections in the VTW disposable lineup.
How Does It Compare?
The G42K occupies a unique spot in the VTW disposable lineup — it's the only device with adjustable nicotine and wattage control, and one of only two with a triple mesh coil. At $35.00 for 20mL and 42,000 puffs, it offers more puffs-per-dollar than most competitors at the same e-liquid capacity.
📊 OXBAR G42K vs. Other 20 mL Disposables
| Feature | OXBAR G42K | Elfbar FS70K | Geek Bar Pulse X 25K |
|---|---|---|---|
| E-Liquid | 20mL | 20mL | 20mL |
| Puffs | 42,000 | 70,000 | 25,000 |
| Battery | 900mAh | 850mAh | 820mAh |
| Coil | Triple mesh | Triple mesh | Dual vertical mesh |
| Nic Control | Adjustable | Fixed | Fixed |
| Wattage Control | Adjustable | 3 presets | 2 presets |
| Airflow | Adjustable | Adjustable | Adjustable |
| Screen | Mega LCD (wattage + levels) | LED (levels) | 3D curved (levels) |
| Flavours | 35 | 20 | 32 |
| Price (VTW) | $35.00 | $33.75 | $35.75 |
The G42K's advantage is control — adjustable nicotine and wattage aren't available on either competitor. It also has the largest battery (900mAh) and the widest flavour selection (35). The Elfbar FS70K claims a higher puff count from the same 20 mL capacity. The Pulse X 25K has the 3D curved screen and quick charging. All three share adjustable airflow.
Frequently Asked Questions
How does adjustable nicotine work on a prefilled disposable?
The e-liquid is prefilled at 20mg/mL — that doesn't change. What the G42K adjusts is the nicotine delivery per puff by controlling how much vapour is produced. At lower settings, less vapour means less nicotine per draw. At higher settings, more vapour means a stronger nicotine hit. It's controlled via a button on the device, and the current setting is displayed on the Mega LCD screen.
How many puffs does the OXBAR G42K last?
Up to 42,000 puffs from a 20mL e-liquid capacity. Using higher wattage or nicotine settings will consume e-liquid faster and reduce the total count. Actual puffs also depend on draw length and frequency.
What does "Clear" flavour mean?
Clear is an unflavoured option — nicotine salt e-liquid with no added flavouring. It's intended for vapers who want the nicotine delivery without any fruit, menthol, or dessert taste. This is uncommon in the disposable market.
How does the wattage adjustment work?
The G42K lets you increase or decrease the wattage directly, rather than toggling between preset modes (like Normal/Boost on other devices). Higher wattage produces warmer, denser vapour with more intense flavour. Lower wattage gives a cooler, lighter draw and extends the device's life. The current wattage is displayed on the Mega LCD screen.
What makes the triple mesh coil different from dual mesh?
Triple mesh uses three heating elements instead of two, which heats e-liquid across an even larger surface area. This results in fuller flavour extraction and denser vapour per draw. In the VTW disposable lineup, only the OXBAR G42K and the Elfbar FS70K use triple mesh — everything else runs dual or single mesh.
Is the OXBAR G42K rechargeable?
Yes. The 900 mAh battery recharges via USB Type-C. You'll need to recharge multiple times over the life of the device since the 20mL tank outlasts a single battery charge.
How does the G42K compare to the OXBAR Maglink 90K?
Different product categories. The Maglink 90K is a reusable pod system (battery + swappable pods at $31/pod). The G42K is a standalone disposable ($35.00, thrown away when empty). The Maglink offers more flavours (35 across 5 series), a larger 30mL pod, and lower ongoing cost. The G42K offers adjustable nicotine and wattage control that the Maglink doesn't have, plus no separate device purchase is needed.
Can I buy the OXBAR G42K online in Canada?
Yes. Vaping The Way ships free across Canada on orders over $75.00, and offers free same-day delivery in Regina, Saskatchewan Monday through Friday.
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