Aspire Nautilus X 4ml Adapter

The larger tank is pretty much mandatory for the Nautilus X.  It holds much more juice and stays cooler

It's a bigger tank, and it works. It is a little awkward dealing with the coil attachment, as sometimes it ends up unscrewing along with the top cap, though if the juice is low (the only time you'd be opening the thing anyway) it doesn't matter much.

Also the glass is a little thin- this is the 2nd one I purchased, as I dropped the glass of my first one on the bathroom counter and it shattered.

That said, it's cheap and works well, and definitely beats having to refill the tank twice as often! The vapor is a little cooler than without the extension, as it has longer to travel before it gets to your mouth. For me this was a good thing, as I thought even at lower wattages the temp was a little hot before adding the extension.

I got the Nauti X and the 4ml kit together and it's the only way I've used the tank. I'm using the 4ml expansion every day, it's nice to not have to refill very often. It does what it says and makes the Nautilus X a 4ml tank.
But - I'm a bit on the fence about this. The Nautilus X sips juice very efficiently. 2ml would last longer in it than in any of my sub-ohm tanks. So maybe this isn't as essential as I initially thought. But I'm not taking it off.

One thing I found is I  have to be careful how I tighten things. The coil and the chimney extension both have to be really tight or they can turn out when I take the cap off to refill. Now that I have that figured out refilling has been easy. The cap seals well when it's just finger tight and I've had No Leaks from this tank. That is a wonderful thing. The flavor from this tank is good too so I'm very happy with my 4ml Nautilus X. And really happy with VapeShop for getting it to me so quickly. You folks rock!

great addition to the nautilus X

A lot more convenient than the smaller 2ml tanks, but personally I wish there was an even larger option available!

The one that comes with it is great but the extension for 4 ml is great as you do not need to fill as much, this way if you are out and about you don't need to carry your juice with you at all times. All you got to do is fill this bad boy up and should last you all day for great vaping. must have addition for your set up and can not beat the price, well worth it.

I have spent over 800 dollars finding the right Tank
I have found it in the Nautilus X from aspire. For this reason there is no leak the air flo  is at the top, thus not allowing leakish from the bottom. Seperately you can purchase extra glass tubes and can get a 4ml extension, which works great. This is it for me no more spending money on frivolous tanks.

Just what i needed for more capacity! Fits perfect, still no leaking, & big plus-not getting hot lips anymore. I was hoping this would eliminate that problem by moving the coil from the mouthpiece & it does!

The extension for the Nautilus X tank makes it go from a good tank to a great tank!  Double the capacity of your juice and it's not as hot so close to your mouth. I highly recommend getting this if you like the ease of a top fill tank!

With the 4ml tank extension, it is now the perfect tank for my RX75 as well as my istick Pico. The extension of the airshaft also helps cool the drip tip down a bit. Overall a win....win. Highly recommended. Also Vapeshop was excellent to do business with.

Thank you VapeShop for fast shipping!

Great Item, even though there were no instructions. I found a YT tutorial After some frustration trying to remove 2ml tank (easier to remove with a rubber glove or silicone potholder) finally got it off and 4ml glass fit snugly.

Looks great & doesn't leak. Might be just me but I perceived a cooler vape. Turned up the wattage a bit and was back in the sweet spot. If you love your Nautilus X, this is a great adapter that reduces tank refills.