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Oxbar G42KThe OXBAR G42K by Rocky Vapor packs more user adjustable controls into a disposable than any other device in the VTW lineup. It holds 20mL of e liquid at 20mg mL nicotine salt, delivers up to 42,000 puffs, and provides three adjustments most disposables do not: adjustable nicotine output, adjustable wattage, and adjustable airflow. All three are controlled through the device and shown on a Mega LCD screen. A triple mesh coil and 900mAh rechargeable

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The OXBAR G42K by Rocky Vapor packs more user-adjustable controls into a disposable than any other device in the VTW lineup. It holds 20mL of e-liquid at 20mg/mL nicotine salt, delivers up to 42,000 puffs, and provides three adjustments most disposables do not: adjustable nicotine output, adjustable wattage, and adjustable airflow. All three are controlled through the device and shown on a Mega LCD screen. A 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.

At a Glance

Up to 42,000 puffs from a 20mL prefilled tank
Adjustable nicotine output (unique in this category)
Adjustable wattage (not just preset modes)
Adjustable airflow
Triple mesh coil for fuller flavour extraction
Mega LCD display showing wattage, e-liquid, and battery
900mAh battery with USB-C charging
35 flavours including an unflavoured "Clear" option

OXBAR G42K Full Specifications

Spec	Details
E-Liquid Capacity	20mL (prefilled)
Puff Count	Up to 42,000
Nicotine Strength	20mg/mL (nicotine salt) with 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	Approximately 95g
Flavours Available	35

Adjustable Nicotine Output: 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 adjusts 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 want a stronger hit at some times and something lighter at others without carrying two devices or switching flavours, this is a meaningful feature that no other disposable at VTW offers.

Adjustable Wattage

In addition to nicotine control, the G42K allows wattage to be adjusted 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 toggle found on other disposables. Instead of two preset levels, the G42K gives finer control over 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. Every other disposable at VTW runs dual or single mesh.

Mega LCD Display

The 3D curved display shows three data points in real time: current wattage setting, remaining e-liquid level, and 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 do not show the actual wattage value on screen.

35 OXBAR G42K 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.

OXBAR G42K vs Elfbar FS70K vs Geek Bar Pulse X 25K

The G42K occupies a unique spot in the VTW disposable lineup: it is the only device with adjustable nicotine and direct 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.

📊 Full Comparison Table (20mL 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
Nicotine 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 are not 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 20mL 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 and that does not change. What the G42K adjusts is 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. Control is 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 total count. Actual puffs also depend on draw length and frequency.

What does the "Clear" flavour mean?

Clear is an unflavoured option: nicotine salt e-liquid with no added flavouring. It is 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 allows wattage to be increased or decreased 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, heating e-liquid across a 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. Every other disposable at VTW runs dual or single mesh.

Is the OXBAR G42K rechargeable?

Yes. The 900mAh battery recharges via USB Type-C. Recharging will be needed 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 plus swappable pods at $31 per pod). The G42K is a standalone disposable ($35.00, replaced 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 does not have, plus no separate device purchase is required.

Can I buy the OXBAR G42K online in Canada?

Yes. The OXBAR G42K ships free across Canada on orders over $75 and qualifies for free same-day delivery in Regina, Saskatchewan Monday through Friday on orders placed before 3pm. It is also stocked at all 15 Vaping The Way retail locations across Saskatchewan and Alberta.