Innokin vape tank: Zenith, Zlide and Z coils
Zenith, Zenith II, Zenith Pro, Zenith Pro 2, Zenith M, Zlide, Zlide D24, Go Z, Go Z MTL, Prism T20S. Ten close-sounding names on one British catalogue page, separated by a millimetre or two of diameter and near identical photographs. Alphabetical order helps not at all. There is a logic behind the list, and any Innokin vape tank falls into one of two lines.
An Innokin vape tank sits in one of two lines
The range splits into two branches. The Zenith line aims at mouth to lung vaping, a restricted draw and flavour delivery at moderate power. The Zlide line, which came later, covers both indirect and direct draws depending on the coil fitted.
Above those two branches sits a common denominator that listings rarely put forward: the same coil family travels between them. So the choice is made by branch first, then by diameter, and only rarely by generation.
That architecture explains the unusual longevity of the range, where a tank released several years ago is still fed with consumables on British shelves today.
A brand parked on a narrow niche
Innokin has been making vaping hardware since the early 2010s and has never really left the territory of the tight draw. Where other manufacturers followed the climb in power and the big vapour volumes, this one thickened an offer built around flavour.
The choice shows in the catalogue figures: diameters between 22 and 24 mm, modest working powers, and a mechanical simplicity that ages well. Nothing spectacular, but compatibility with almost every battery on the market.
It shows in usage too. An Innokin vape tank turns up rarely on a high output mod and far more often on a compact tube or an entry level box, which is exactly the hardware most British starter kits are built around.
What British capacity figures mean here
The brand’s own pages illustrate the point better than any commentary. The Zenith has long been listed as available in both a 4 ml and a 2 ml version, the second described as TPD compliant, and it is that second one you buy here.
Under the Tobacco and Related Products Regulations 2016, administered by the MHRA, tanks sold in the United Kingdom are restricted to a capacity of no more than 2 ml. The same rules cap nicotine containing e-liquid at 10 ml per refill container and at a strength of no more than 20 mg per ml, and require notification to the MHRA before a product can be sold.
So an overseas review quoting 3 ml or 4 ml is describing a variant that is not on sale here. Since single-use vapes became illegal to sell or supply on 1 June 2025, refillable hardware of this kind is what British shops stock, which has pushed these small MTL tanks back to the front of the shelf.
Zenith, the line that made the brand
The original Zenith established the brand’s reputation with the wider public. Its precise air adjustment and metal construction made it a lasting reference, later declined into several versions that all behave in much the same way.
The D22 and D24 variants take the same formula and play on diameter, 22 mm for the first and 24 mm for the second. The behaviour stays that of the line; what changes is visual fit against the battery and the tube itself.
The Zenith II brought an evolution that is rarely underlined: the glass of the reservoir can be replaced, where most earlier Zeniths meant buying the whole assembly again after a knock. On an accessory meant to last, that distinction matters more than a headline feature.
Higher up, the Zenith Pro keeps the tight draw orientation and remains one of the most discussed references of the brand, with the Zenith Pro 2 succeeding it on a more versatile format. The Zenith M, or Zenith Minimal, goes the other way with a more compact body for discreet setups. Three different answers to one intention.
Zlide, the versatile line
The Zlide branch answers a need the Zenith did not cover: moving from a tight draw to a more open one without changing tank. The adjustment is made by the choice of coil rather than by an extra accessory bought separately.
The Zlide D24 sits on 24 mm, and the Zlide D22, presented as its little brother, drops to 22 mm for slim batteries. Coil values available on this branch run from roughly 0.3 to 1.6 ohm, which genuinely covers both registers.
Alongside those two pillars, the Go Z, Go Z Plus and Go Z MTL occupy the entry segment, and the Prism T20S remains a compact reference aimed at the indirect draw. All of them are common sights in British starter kits.
Z coils, what every Innokin vape tank shares
Here is the point product pages rarely state plainly: one coil family feeds several models in the range, and not only tanks. These coils are announced as compatible with the Zlide, the Zenith, the Zlide 24 and even a pod from the brand.
The practical consequence is direct. Changing tank inside this ecosystem does not force you to bin your stock of consumables, which is the exception rather than the rule among vaping hardware manufacturers.
That continuity has a downside. A coil value withdrawn from the catalogue affects several devices at once, so checking real availability at your usual British retailer before committing to a platform remains sensible.
It also changes how a setup evolves. Moving from a tight draw to a more open one does not require a new reservoir: changing the value of the fitted coil is often enough, and the gesture is an ordinary replacement done in seconds without a tool.
22 or 24 mm, the criterion that really decides
Inside one line, models behave very similarly. Diameter, by contrast, cannot be corrected after purchase: a tank wider than the mod overhangs the deck and makes the whole thing unstable.
| Diameter | Models concerned | Typical use |
|---|---|---|
| 22 mm | Zenith D22, Zlide D22, Prism T20S | Tube batteries and compact mods |
| 24 mm | Zenith D24, Zlide D24, Zenith Pro | Standard mods, wider tube |
The second criterion is the line, so the intended draw. Only the third is the generation of the model. Taking those three questions in that order settles nearly every hesitation in front of a catalogue page, and it works whichever retailer you are browsing.
FAQ
Does this tank work on a mod from another brand?
Yes, the range uses the 510 connector shared by the great majority of manufacturers. Only the width of the mod deck can create a cosmetic or stability problem.
How long does a coil last?
No universal duration exists: it depends on the liquid used, the power applied and how often you vape. Degradation of flavour remains the most reliable signal.
Why do some models carry the Pro label?
Here it marks an evolution of the base model, generally on capacity, airflow or finish, without a change in the draw philosophy of the line.
Can the glass of the reservoir be replaced?
It can on several recent references, including the Zenith II. On older models the tube was not always offered as a spare part.
Should a new coil be primed?
Placing a few drops of liquid on the visible cotton, then letting the filled tank stand for several minutes before the first puff, remains the advised gesture across the range.
Choosing an Innokin vape tank without getting lost in the names
The range comes down to two lines, a choice of diameter and a coil platform that links them. Once those three markers are in place, the ten names in the catalogue become readable again and the decision takes two questions rather than an afternoon.
Other manufacturers made the opposite bet, multiplying consumable platforms instead of pooling them. The comparison is instructive: seeing how Voopoo arranges cartridges and tanks shows how far compatibility strategy varies from one brand to the next, and Aspire read through its coils offers a third pattern again.
If you are arriving from a single-use device, the general guide to vape tanks covers the parts and the maintenance that all of these share. Whatever you settle on, read the power range printed on the coil itself rather than a figure quoted in a review, since only that printed range matches the exact reference in your hand. That habit is what makes an Innokin vape tank straightforward to live with.
This article is strictly informative and is written for adult vapers only. It is not a buying recommendation: depending on the reference, a vaping product contains nicotine, a substance that causes dependence. Nothing described here may be sold to under-18s in the United Kingdom.
