Aspire Nautilus 3 Replacement Tank

Twenty-four millimetres wide and built from stainless steel with Pyrex glass. The Aspire Nautilus 3 is a dedicated MTL tank with a sliding top-fill system, an e-liquid shut-off valve that stops juice from leaking during coil changes, and compatibility with every coil in the entire Nautilus series. Two coils ship in the box: a 1.8ohm BVC for tight, cigarette-style draws and a 0.7ohm mesh for warmer restricted direct-lung pulls.

Seven airflow inlets, a CRC-locking mouthpiece for child resistance, and press-fit coil installation that takes seconds. 2ml capacity under UK TPD rules. Three finishes. One of the most respected Vape Tanks in the MTL category, and it has been for a reason. Over 18s only.

Why vapers choose the Nautilus 3:

• Seven individually selectable airflow inlets ranging from 0.8mm to 3.0mm let you dial in exactly the draw resistance you want, from a tight cigarette-like pull to a slightly looser restricted lung hit, without swapping any hardware

• E-liquid shut-off valve seals the tank base when you remove a coil, which means you can change coils without draining your tank or losing a single drop of juice

• Full Nautilus coil compatibility across every resistance Aspire has produced for the series, from the original 1.8ohm BVC through to the 0.3ohm mesh, giving you eight or more coil options from one tank

• Press-fit installation instead of threaded screw-in, so coil swaps are quick and tool-free

• CRC locking mouthpiece adds genuine child resistance to the fill system, which matters in a household with young children

Aspire Nautilus 3 Replacement Tank Features

The Shut-Off Valve Changes How You Swap Coils

Most tanks force you into a routine: drain the liquid, remove the old coil, install the new one, refill, wait. The Nautilus 3 skips half of that. The integrated e-liquid shut-off valve closes the channel between the tank body and the coil chamber when the coil is removed. Your liquid stays put. Pull the old coil, press the new one in, and vape. That is a small engineering decision that saves real time, especially when you change coils weekly.

Why Seven Airflow Options Matter More Than You Think

One or two airflow settings are standard on most tanks. The Nautilus 3 offers seven distinct inlets on the airflow control ring, each a different diameter between 0.8mm and 3.0mm. In practice, this means you are not choosing between "open" and "closed." You are stepping through a range. Pair the tightest setting with the 1.8ohm BVC coil, and it feels close to a cigarette draw. Open it up a few notches with the 0.7ohm mesh, and you get a warmer, slightly cloudier restricted lung pull. One tank, a wide spread of draw styles.

Sliding Top-Fill With a Purpose

Pull the drip tip off, slide back the top cap, fill through the single port. The CRC locking mechanism means the cap does not slide open accidentally in a pocket or bag, and it keeps the fill port inaccessible to children. Practical, not gimmicky. The fill port is wide enough for most bottle nozzles without squeezing or overfilling. It works at speed when you are refilling quickly between tasks.

Stainless Steel That Earns Its Keep

At 72.55g, the Nautilus 3 has genuine weight to it. The full stainless steel body with Pyrex glass handles the kind of everyday wear that lighter plastic tanks do not survive. Drops onto a desk, a knock against the edge of a table, the inside of a bag with keys and coins. Fair enough, it is not indestructible. But it is built to last far longer than budget alternatives. A spare glass section ships in the box, and replacement Nautilus 3 glass is available separately.

Press-Fit Coils, No Thread to Strip

Threaded coil installation works fine until you cross-thread it once and the seal goes. The Nautilus 3 uses a press-fit system. Push the coil in until it clicks. Pull it out when it is spent. No rotation, no alignment, no risk of damaging the threads over repeated swaps. Combined with the shut-off valve, a coil change on this tank genuinely takes under a minute.

Aspire Nautilus 3 Replacement Tank Colours

Three finishes. All use the same stainless steel and Pyrex glass construction, so the choice is purely visual.

#buttons

• Black
• Silver
• Gunmetal

How to Set Up the Aspire Nautilus 3 Replacement Tank

1. Remove the pre-installed 0.7ohm mesh coil from the base of the tank if you prefer to start with the 1.8ohm BVC instead. If the mesh coil suits your vaping style, leave it in place and skip to step three.

2. Press your chosen coil firmly into the base until you feel it seat. The press-fit mechanism should click or hold snugly without any wobble.

3. Apply three to four drops of e-liquid directly onto the exposed cotton visible through the coil's wicking ports. Tilt the coil slightly and add another drop down the centre bore.

4. Reassemble the tank body onto the base, then slide back the top cap and fill through the port with your chosen e-liquid. Stay just below the max line to leave airspace.

5. Stand the filled tank upright for six to seven minutes. The cotton inside Nautilus coils is densely packed and needs this time to saturate fully from the base upward. Rushing this step chars the wick permanently.

6. Start at the lowest recommended wattage for your coil: 10W for the 1.8ohm BVC or 20W for the 0.7ohm mesh. Take a few short draws before increasing gradually.

What's in the Aspire Nautilus 3 Replacement Tank Box

• One Nautilus 3 tank with the 0.7ohm Nautilus 2S mesh coil pre-installed. 

• One 1.8ohm Nautilus BVC coil in the box,

• a spare Pyrex glass tube, 

• a spare 510 drip tip, 

• a user manual, 

• and an O-ring pack for maintenance. 

No e-liquid, no mod, no batteries. You will need a 510-threaded mod or battery to use this tank.

The MTL Tank That Accepts Eight Coil Families

The Nautilus 3 is backwards-compatible with every coil Aspire has manufactured for the Nautilus platform. That is a significant range:

The 1.8ohm BVC (10-14W) and the 1.6ohm BVC (7-12W) are classic tight-draw MTL coils for higher-PG liquids and nic salts. The 0.7ohm BVC (18-23W) opens the draw up slightly. The NS 1.8ohm (10-12W) is specifically optimised for salt nicotine. 

Then there is the sub-ohm range: the 0.7ohm 2S Mesh (20-25W, included), the 0.4ohm 2S (23-28W), the 0.3ohm mesh (23-28W), and the 1.0ohm mesh (13-15W).

What does not fit: any coil from the Aspire Cleito family, the PockeX range, the Atlantis series, or any Aspire pod system. The Nautilus platform is its own coil ecosystem. 

If the coil says "Nautilus" on the packaging, it works. If it does not, it will not. Browse the full Vape Coils collection for compatible options.

About Aspire

The Nautilus name defined mouth-to-lung vaping for a generation of vapers. The original Nautilus tank arrived in 2014, and it became the benchmark that every subsequent MTL Tank was measured against. Aspire built on that with the Nautilus 2, the Nautilus GT, and now the Nautilus 3. Each revision refined the airflow, the coil platform, and the fill system.

The Nautilus 3 specifically inherits its flavour profile from the Nautilus GT while adding the shut-off valve and CRC child-resistant feature that earlier models lacked. For MTL vapers who have used any Nautilus tank before, this is the version that fixes the small frustrations the older models had. Browse the full Aspire Collection for kits, tanks, pods, and coils.

Stock Up and Save

A tank is only as good as the coils and liquid running through it. The Nautilus 3 ships with two coils, but the 1.8ohm BVC will last roughly a week with daily use, and the 0.7ohm mesh perhaps ten days depending on how sweet your liquid runs.

Picking up a five-pack of Nautilus BVC coils alongside a few bottles of e-liquid in the same order gets you through the first month without thinking about it. Every order from Pirate Vapes ships the same day before 4 pm in protective packaging. TPD-compliant stock, age-verified checkout, over 18s only. Free Pirate Post on orders over £25.

Conclusion

The Nautilus 3 is the tank you buy when you already know you want MTL and you want it done properly. The shut-off valve, the seven-position airflow ring, and the full backwards compatibility with Aspire's Nautilus coil range make it one of the most versatile MTL tanks available in the UK right now.

Three finishes, solid stainless steel construction, and a spare glass in the box. If your current tank leaks during coil changes, does not give you enough airflow control, or locks you into a single coil option, this is the upgrade. Browse more Vape Accessories and pick one up at Pirate Vapes.

FAQs

What coils fit the Nautilus 3?

Every coil in Aspire's Nautilus series. That includes the 1.8ohm BVC, 1.6ohm BVC, 0.7ohm BVC, NS 1.8ohm, 0.4ohm 2S, 0.7ohm 2S Mesh, 0.3ohm mesh, and the 1.0ohm mesh. Eight options from one tank.

Does the Nautilus 3 leak?

Rarely. The shut-off valve seals the coil chamber during changes, and the sliding top-fill locks shut via a CRC mechanism. Leaking is almost always caused by a poorly seated coil or overfilling past the max line.

What e-liquid ratio works best?

Depends on the coil. The 1.8ohm BVC works best with 50/50 VG/PG or higher-PG blends. The 0.7ohm mesh handles 50/50 and slightly higher-VG liquids comfortably. Avoid thick 70/30 or max-VG in any of the higher-resistance MTL coils.

Is the Nautilus 3 good for nic salts?

Very. The tight MTL draw and low wattage on the BVC coils make it one of the better tanks for nic salts at 10mg or 20mg. Aspire even makes a dedicated NS 1.8ohm coil optimised specifically for salt nicotine.

How often do Nautilus 3 coils need replacing?

Roughly every one to two weeks with daily MTL use. Sweeter liquids gunk the cotton faster. The 0.7ohm mesh tends to last slightly longer than the traditional BVC wire coils because mesh distributes heat more evenly across the wick.

What mod does the Nautilus 3 need?

Any 510-threaded mod or battery capable of firing between 7W and 28W. The Aspire Zelos 3 is the natural pairing, but any regulated mod with a 510 connector will work. The tank sits flush on most 24mm-wide mods.