Vape Tanks Explained: Types, Compatibility and Care 2026
A vape tank is the part of your vape device that holds your e-liquid and houses the coil that turns it into vapour. Every time you take a draw, the coil inside your tank heats the e-liquid soaked into its wick and produces the vapour you inhale. If your vape kit uses a separate tank rather than an integrated pod, understanding how tanks work and how to maintain them will improve your flavour, extend your coil life, and help you avoid common problems like leaking and dry hits.
This guide covers the components inside a vape tank, the different types available, how to check compatibility with your device, how airflow works, how to clean and maintain your tank, and how to troubleshoot the most common issues. For guidance on the coils that go inside your tank, see our vape coils guide.
What is inside a vape tank?
Most vape tanks share the same core components regardless of type or brand. Understanding what each part does will help you maintain your tank properly and diagnose problems when they occur.
| Component | What it does |
|---|---|
| Drip tip (mouthpiece) | The part you put to your lips. Drip tips come in three standard sizes: 510 (8.5mm, narrower draw), 710 (10.5mm), and 810 (12.5mm, wider draw). Most drip tips are removable and can be swapped for a different size or material to change the feel of your vape. |
| Top cap and fill port | Seals the top of your tank and provides access for refilling. Top-fill tanks use either a threaded screw cap, a sliding cap, or a push-open port. Top-fill designs are more convenient and less prone to spillage than older bottom-fill tanks. |
| Glass tank section | The transparent section that holds your e-liquid and lets you see the liquid level. Usually made from pyrex or borosilicate glass for heat resistance. Some tanks come with a spare glass section in the box. |
| Coil | A metal wire wrapped with cotton wick that sits inside the tank. When powered by the battery, the wire heats up and vaporises the e-liquid soaked into the wick. Coils are consumable and need replacing every 1 to 3 weeks depending on usage. For full details on coil types and care, see our coils guide. |
| O-rings | Small rubber seals found between the glass, base, top cap, and coil. O-rings prevent e-liquid from leaking between sections. They wear out over time and are one of the most common causes of tank leaks. Most tanks include spare o-rings in the packaging. |
| Base and 510 connector | The bottom of the tank, which screws onto your vape device via a standard 510 thread. The base also usually houses the airflow control ring, which adjusts how much air enters the tank with each draw. |
Types of vape tank
Vape tanks fall into four main categories. Each one is designed for a different style of vaping and a different level of experience.
Mouth-to-lung (MTL) tanks
MTL tanks are designed for a tight, cigarette-style draw where you pull vapour into your mouth first, then inhale it into your lungs. They use high-resistance coils (typically 1.0 ohm or above), work best with 50/50 or high-PG vape juice, and produce small, discreet clouds. MTL tanks are the most popular choice for ex-smokers and beginners because the draw style closely replicates smoking. Most MTL tanks feature adjustable airflow so you can fine-tune how tight or open the draw feels. The Vaporesso XTank T is a popular example of a modern MTL tank with precise airflow control. Browse the full range of vape tanks.
Sub-ohm (DTL) tanks
Sub-ohm tanks use coils with a resistance below 1.0 ohm and are designed for direct-to-lung (DTL) vaping, where you inhale vapour straight into your lungs in a single breath. They produce large, warm clouds and deliver intense flavour. Sub-ohm tanks work best with high-VG vape juice (70/30 or higher) and low nicotine strengths (3mg to 6mg). They require more power from your battery and consume more vape liquid per session than MTL tanks. The Vaporesso iTank T is a well-regarded sub-ohm tank with dual mesh coil technology for rich flavour output.
Disposable tanks
Disposable tanks come with a built-in coil that cannot be replaced. You use the tank until the flavour starts to fade or the coil burns out, then replace the entire tank with a new one. This makes them extremely low-maintenance and a good option for vapers who want to avoid coil changes entirely. The Innokin Go S is one of the most popular disposable tanks on the market, featuring top-fill, adjustable airflow, and a fixed 1.6 ohm coil that delivers a consistent MTL draw.
Rebuildable tanks (RTAs)
Rebuildable tank atomizers are designed for experienced vapers who want to build and install their own coils. This gives you full control over resistance, wire type, and wick material, which allows you to fine-tune flavour and vapour production to your exact preferences. RTAs require a solid understanding of Ohm's law and coil building techniques. They are not recommended for beginners, but for advanced vapers they offer a highly personalised and cost-effective vaping experience.
Are vape tanks interchangeable?
This is one of the most commonly searched questions about vape tanks, and the short answer is: usually yes, as long as both the tank and the device use a 510 connector.
The 510 connector is a standard screw thread used by the vast majority of vape tanks and mod devices. If your tank has a 510 thread and your device has a 510 fitting, they will physically connect. This means you can swap tanks between different brands and devices, giving you the flexibility to experiment with different setups.
However, physical compatibility does not always mean optimal performance. There are two things to check beyond the connector type. First, make sure your device can deliver the wattage your tank's coil requires. A sub-ohm coil rated for 40 to 80 watts will not perform well on a device that only outputs 15 watts. Second, check that your tank's coil resistance is within the range your device supports. Most modern regulated mods will display the detected resistance and will not fire if it is outside their safe operating range.
Pod kits do not use 510 connectors. Pods are proprietary to each device and are not interchangeable between brands. If your vape uses pods rather than a tank, you are limited to the pods designed for that specific kit. For more on pod kits and how they differ from tank-based devices, see our beginner's guide to vape kits.
How airflow affects your vape
Most vape tanks have an adjustable airflow ring, usually located on the base. Turning this ring opens or closes small holes that control how much air is drawn through the tank when you inhale. This single adjustment has a significant impact on how your vape feels.
| Airflow setting | Effect |
|---|---|
| Restricted (closed down) | Tighter draw, stronger throat hit, warmer vapour, less cloud. Closer to the sensation of smoking a cigarette. Best for MTL vaping with nic salts or high-PG vape juice. |
| Open (wide open) | Airier draw, cooler vapour, larger clouds, smoother throat hit. Best for DTL vaping with high-VG vape juice and low nicotine. Produces more vapour per puff. |
If you are new to tanks, start with the airflow partially closed and gradually open it until you find a draw that feels comfortable. There is no wrong setting: it is entirely down to personal preference.
How to clean a vape tank
Regular cleaning keeps your tank performing at its best and prevents old e-liquid residue from muddying the flavour of a new e-liquid. You should clean your tank every time you change your coil or switch to a different flavour.
To clean your tank, start by disassembling it and removing the coil. Rinse each component (glass, base, top cap, drip tip) under warm running water for at least 60 seconds. For stubborn residue, soak the parts in warm water for 10 to 15 minutes. Dry everything thoroughly with a clean cloth or kitchen towel, then leave the parts to air dry for another 10 minutes before reassembling. Do not rinse or soak your coil, as water will damage the cotton wick inside it.
Common vape tank problems and how to fix them
Leaking
The most common cause of leaking is a worn or damaged o-ring. Check all o-rings for cracks or stretching and replace any that look degraded. Other causes include overfilling (always leave a small air gap at the top), a coil that is not screwed in tightly enough, or a cracked glass section. If your tank leaks after filling, close the airflow before refilling and open it again once the cap is sealed: this reduces the pressure change that can push vape juice through the airflow holes.
Gurgling
A gurgling sound when you draw usually means excess vape liquid has flooded into the coil chamber. This can happen from overfilling, from leaving airflow open during refilling, or from drawing too hard. To fix it, remove the tank from your device, wrap a piece of kitchen towel around the airflow holes, and blow firmly through the mouthpiece to push excess liquid out. Reassemble and try a few short draws to clear the remaining liquid.
Dry or burnt hits
A dry hit tastes harsh and burnt and means the coil's wick has run dry. This is usually caused by chain vaping (not giving the wick time to re-saturate between puffs), running the tank too low on vape juice, or using a wattage that is too high for the coil. If the coil is new and you are getting dry hits immediately, you may not have primed it properly. For full priming instructions, see our coils guide.
Muted flavour
If your vape juice tastes weak or dull, the most likely cause is a coil that needs replacing. E-liquid residue builds up on the coil over time, gradually reducing flavour clarity. Cleaning your tank regularly helps, but the coil itself is a consumable part that needs swapping every 1 to 3 weeks. Using a different coil resistance can also change how flavour is delivered: lower resistance coils tend to produce warmer, more intense flavour.
When to replace your vape tank
Vape tanks are designed to last a long time, but they are not indestructible. You should consider replacing your tank if the glass is cracked or chipped (even a hairline crack can cause slow leaks), if the 510 connector thread is stripped or cross-threaded and no longer screws in securely, if the airflow ring is stuck and cannot be adjusted, or if o-ring replacements no longer stop leaking (which can indicate warping of the metal housing). A well-maintained tank can last a year or more. The coils inside it are the parts that need regular replacement, not the tank itself.
Frequently asked questions
What is a vape tank?
A vape tank is the component of a vape device that holds your vape juice and houses the coil. The coil heats the liquid and turns it into vapour. Tanks are typically made from glass and metal and are found on top of mod and pen-style vaping devices.
Are all vape tanks universal?
Most vape tanks use a standard 510 connector thread, which makes them compatible with the majority of mod devices. However, you also need to check that your device supports the coil resistance and wattage range your tank requires. Pod kits use proprietary pods and are not interchangeable.
Are vape tanks interchangeable?
Yes, in most cases. If both the tank and the device use a 510 connector, they will physically connect. Check wattage and resistance compatibility before vaping to ensure the best performance.
What are the different types of vape tanks?
There are four main types: mouth-to-lung (MTL) tanks for a cigarette-style draw, sub-ohm (DTL) tanks for large clouds and intense flavour, disposable tanks with built-in non-replaceable coils, and rebuildable tanks (RTAs) for advanced vapers who build their own coils.
Why is my vape tank leaking?
The most common cause is worn o-rings. Other causes include overfilling, a loose coil, cracked glass, or refilling with the airflow open. Check all seals and ensure the coil is seated properly.
How often should I clean my vape tank?
Clean your tank every time you change your coil or switch vape juice flavours. A quick rinse under warm water and thorough drying is usually sufficient. For stubborn residue, soak the parts in warm water for 10 to 15 minutes.
How do I know when to replace my vape tank?
Replace your tank if the glass is cracked, the 510 thread is damaged, the airflow ring is stuck, or o-ring replacements no longer stop leaks. The coils inside the tank need replacing every 1 to 3 weeks, but the tank itself can last a year or more with proper care.
Can I use any vape juice in any tank?
Not always. MTL tanks work best with thinner vape juice (50/50 or high-PG). Sub-ohm tanks work best with thicker, high-VG vape liquid. Using the wrong type can cause leaking, dry hits, or poor flavour. For more detail on PG/VG ratios and which suits your setup, see our PG/VG ratio guide.