The Aspire K3 Tank is a 2ml refillable vape tank designed for mouth-to-lung (MTL) vaping. Featuring a bottom-filling design, fixed airflow and a standard 510 connection, it is intended for use with a suitable compatible battery device.
The K3 comes with a 1.8 ohm Aspire Nautilus BVC coil pre-installed. Its Pyrex glass tank section allows you to monitor the remaining e-liquid, while the replaceable coil system makes routine maintenance straightforward.
Please note: This product is a replacement tank, not a complete vape kit. A compatible battery device and e-liquid are required separately.
Aspire K3 Tank Features and Specifications
- Brand: Aspire
- Product: K3 Tank
- Tank capacity: 2ml
- Tank type: Refillable vape tank
- Vaping style: Mouth-to-lung (MTL)
- Filling method: Bottom filling
- Airflow: Fixed, non-adjustable
- Connection: Standard 510 threading
- Included coil: Aspire Nautilus BVC 1.8 ohm
- Coil power range: 10–14W for the included 1.8 ohm coil
- Materials: Pyrex glass and stainless steel
- Height: Approximately 55mm
- Diameter: Approximately 18mm
2ml Refillable Tank for MTL Vaping
The Aspire K3 holds up to 2ml of e-liquid and features fixed airflow designed for a mouth-to-lung inhale. Its narrow profile makes it suitable for compatible compact 510-threaded devices.
The tank is designed for use with Aspire Nautilus BVC coils, with the 1.8 ohm version supplied as standard.
Which Coils Are Compatible With the Aspire K3 Tank?
The Aspire K3 Tank uses the Aspire Nautilus BVC coil system and is supplied with a 1.8 ohm coil already installed.
For replacement coils, visit our Aspire Nautilus Coils product page and select the compatible 1.8 ohm option.
Compatibility note: Standard Aspire BVC coils used in some other Aspire tanks are different from Nautilus BVC coils. Check the exact coil model before purchasing.
If using the tank with the original Aspire K3 battery, use the specified 1.8 ohm Nautilus coil. Other coil resistances should not be assumed suitable for that setup.
How to Fill the Aspire K3 Tank
- Remove the tank from the battery device.
- Turn the tank upside down.
- Unscrew the bottom section.
- Add suitable e-liquid around the outside of the central airflow tube.
- Avoid getting e-liquid into the central airflow opening.
- Reattach the bottom section securely without overtightening.
- Allow the coil to saturate before use, particularly when fitting a new coil.
Do not exceed the tank's 2ml capacity. Follow the manufacturer's instructions when filling or maintaining the tank.
How to Replace the Aspire K3 Coil
- Remove the tank from the battery and turn it upside down.
- Unscrew the tank base.
- Unscrew the used coil.
- Fit a compatible Aspire Nautilus BVC 1.8 ohm replacement coil.
- Prime the coil as directed by the manufacturer.
- Reassemble the tank, add e-liquid and allow the wick to saturate before use.
Replace the coil when you experience persistent changes in flavour, reduced vapour production or other signs of wear.
What E-Liquid Should I Use With the Aspire K3 Tank?
The included 1.8 ohm Nautilus BVC coil is designed for MTL vaping and is generally suited to thinner e-liquids, including 50/50 PG/VG blends.
Thicker high-VG e-liquids may not wick as effectively with this coil. Follow the manufacturer's recommendations for your chosen coil.
Explore our 50/50 E-Liquid Collection for compatible e-liquid options.
What's Included?
- 1 x Aspire K3 Tank (2ml)
- 1 x Aspire Nautilus BVC 1.8 ohm coil (pre-installed)
- Filling and coil replacement instructions
Not included: Battery device, charger and e-liquid.
Aspire K3 Tank FAQs
What is the capacity of the Aspire K3 Tank?
The Aspire K3 Tank has a 2ml refillable e-liquid capacity.
Which coils does the Aspire K3 Tank use?
The Aspire K3 uses Aspire Nautilus BVC coils and is supplied with a 1.8 ohm Nautilus BVC coil pre-installed.
Can I use standard Aspire BVC coils in the K3 Tank?
The K3 requires the compatible Nautilus BVC coil format. Standard Aspire BVC coils designed for other tanks should not be assumed compatible.
Does the Aspire K3 Tank come with a coil?
Yes. A 1.8 ohm Aspire Nautilus BVC coil is pre-installed.
Is the Aspire K3 Tank top filling or bottom filling?
It is a bottom-filling tank. Unscrew the base to access the filling area.
Does the Aspire K3 Tank have adjustable airflow?
No. The Aspire K3 uses fixed airflow designed for MTL vaping.
Can I use the Aspire K3 Tank with any 510 battery?
The K3 has a standard 510 connection, but the battery device must also support the fitted coil's resistance and recommended power range. A matching connection alone does not guarantee compatibility.
What wattage should I use with the Aspire K3 Tank?
The supplied 1.8 ohm Nautilus BVC coil has a recommended operating range of 10–14W. Always check the specifications of your fitted coil and battery device.
What e-liquid is suitable for the Aspire K3 Tank?
With the included 1.8 ohm coil, 50/50 PG/VG e-liquids are generally suitable. Always follow the coil manufacturer's guidance.
Is the Aspire K3 Tank a complete vape kit?
No. The product contains the tank and pre-installed coil. A compatible battery device and e-liquid are required separately.
How often should I replace the Aspire K3 coil?
Coil lifespan varies with usage and e-liquid. Replace it when performance noticeably declines or the coil develops a persistent burnt taste.
Where can I buy replacement Aspire K3 coils?
Browse our Aspire Nautilus replacement coils and select the appropriate 1.8 ohm option. You can also explore our Aspire Coils Collection.
Related Aspire Products
Explore our Aspire Vape Tanks Collection for other Aspire tank models and compatible accessories.
Royal Mail Tracked 24: 1-2 day delivery time
DPD Local (UK Mainland only): Next working day delivery
Royal Mail Special Delivery Guaranteed by 1pm: Next working day & Saturday delivery.
Orders placed before 4pm with Royal Mail or 3pm with DPD are dispatched the same working day.
For more information, please see our Shipping Policy.
The Aspire K3 Tank is a 2ml refillable vape tank designed for mouth-to-lung (MTL) vaping. Featuring a bottom-filling design, fixed airflow and a standard 510 connection, it is intended for use with a suitable compatible battery device.
The K3 comes with a 1.8 ohm Aspire Nautilus BVC coil pre-installed. Its Pyrex glass tank section allows you to monitor the remaining e-liquid, while the replaceable coil system makes routine maintenance straightforward.
Please note: This product is a replacement tank, not a complete vape kit. A compatible battery device and e-liquid are required separately.
Aspire K3 Tank Features and Specifications
- Brand: Aspire
- Product: K3 Tank
- Tank capacity: 2ml
- Tank type: Refillable vape tank
- Vaping style: Mouth-to-lung (MTL)
- Filling method: Bottom filling
- Airflow: Fixed, non-adjustable
- Connection: Standard 510 threading
- Included coil: Aspire Nautilus BVC 1.8 ohm
- Coil power range: 10–14W for the included 1.8 ohm coil
- Materials: Pyrex glass and stainless steel
- Height: Approximately 55mm
- Diameter: Approximately 18mm
2ml Refillable Tank for MTL Vaping
The Aspire K3 holds up to 2ml of e-liquid and features fixed airflow designed for a mouth-to-lung inhale. Its narrow profile makes it suitable for compatible compact 510-threaded devices.
The tank is designed for use with Aspire Nautilus BVC coils, with the 1.8 ohm version supplied as standard.
Which Coils Are Compatible With the Aspire K3 Tank?
The Aspire K3 Tank uses the Aspire Nautilus BVC coil system and is supplied with a 1.8 ohm coil already installed.
For replacement coils, visit our Aspire Nautilus Coils product page and select the compatible 1.8 ohm option.
Compatibility note: Standard Aspire BVC coils used in some other Aspire tanks are different from Nautilus BVC coils. Check the exact coil model before purchasing.
If using the tank with the original Aspire K3 battery, use the specified 1.8 ohm Nautilus coil. Other coil resistances should not be assumed suitable for that setup.
How to Fill the Aspire K3 Tank
- Remove the tank from the battery device.
- Turn the tank upside down.
- Unscrew the bottom section.
- Add suitable e-liquid around the outside of the central airflow tube.
- Avoid getting e-liquid into the central airflow opening.
- Reattach the bottom section securely without overtightening.
- Allow the coil to saturate before use, particularly when fitting a new coil.
Do not exceed the tank's 2ml capacity. Follow the manufacturer's instructions when filling or maintaining the tank.
How to Replace the Aspire K3 Coil
- Remove the tank from the battery and turn it upside down.
- Unscrew the tank base.
- Unscrew the used coil.
- Fit a compatible Aspire Nautilus BVC 1.8 ohm replacement coil.
- Prime the coil as directed by the manufacturer.
- Reassemble the tank, add e-liquid and allow the wick to saturate before use.
Replace the coil when you experience persistent changes in flavour, reduced vapour production or other signs of wear.
What E-Liquid Should I Use With the Aspire K3 Tank?
The included 1.8 ohm Nautilus BVC coil is designed for MTL vaping and is generally suited to thinner e-liquids, including 50/50 PG/VG blends.
Thicker high-VG e-liquids may not wick as effectively with this coil. Follow the manufacturer's recommendations for your chosen coil.
Explore our 50/50 E-Liquid Collection for compatible e-liquid options.
What's Included?
- 1 x Aspire K3 Tank (2ml)
- 1 x Aspire Nautilus BVC 1.8 ohm coil (pre-installed)
- Filling and coil replacement instructions
Not included: Battery device, charger and e-liquid.
Aspire K3 Tank FAQs
What is the capacity of the Aspire K3 Tank?
The Aspire K3 Tank has a 2ml refillable e-liquid capacity.
Which coils does the Aspire K3 Tank use?
The Aspire K3 uses Aspire Nautilus BVC coils and is supplied with a 1.8 ohm Nautilus BVC coil pre-installed.
Can I use standard Aspire BVC coils in the K3 Tank?
The K3 requires the compatible Nautilus BVC coil format. Standard Aspire BVC coils designed for other tanks should not be assumed compatible.
Does the Aspire K3 Tank come with a coil?
Yes. A 1.8 ohm Aspire Nautilus BVC coil is pre-installed.
Is the Aspire K3 Tank top filling or bottom filling?
It is a bottom-filling tank. Unscrew the base to access the filling area.
Does the Aspire K3 Tank have adjustable airflow?
No. The Aspire K3 uses fixed airflow designed for MTL vaping.
Can I use the Aspire K3 Tank with any 510 battery?
The K3 has a standard 510 connection, but the battery device must also support the fitted coil's resistance and recommended power range. A matching connection alone does not guarantee compatibility.
What wattage should I use with the Aspire K3 Tank?
The supplied 1.8 ohm Nautilus BVC coil has a recommended operating range of 10–14W. Always check the specifications of your fitted coil and battery device.
What e-liquid is suitable for the Aspire K3 Tank?
With the included 1.8 ohm coil, 50/50 PG/VG e-liquids are generally suitable. Always follow the coil manufacturer's guidance.
Is the Aspire K3 Tank a complete vape kit?
No. The product contains the tank and pre-installed coil. A compatible battery device and e-liquid are required separately.
How often should I replace the Aspire K3 coil?
Coil lifespan varies with usage and e-liquid. Replace it when performance noticeably declines or the coil develops a persistent burnt taste.
Where can I buy replacement Aspire K3 coils?
Browse our Aspire Nautilus replacement coils and select the appropriate 1.8 ohm option. You can also explore our Aspire Coils Collection.
Related Aspire Products
Explore our Aspire Vape Tanks Collection for other Aspire tank models and compatible accessories.
Royal Mail Tracked 24: 1-2 day delivery time
DPD Local (UK Mainland only): Next working day delivery
Royal Mail Special Delivery Guaranteed by 1pm: Next working day & Saturday delivery.
Orders placed before 4pm with Royal Mail or 3pm with DPD are dispatched the same working day.
For more information, please see our Shipping Policy.