Look here
4.5ml DCT Tank) for 35mm Cartomizers
I have all the colors in both the large and small glass sizes.
They are very nice. Give the same vape as the more expensive ones.
With that said, i have three ibtanks and love them.
But in the beginning, i could not justify the cost.
My suggestion is to get one slim and one mega size.
I now use them for letting friends and family try.mkinda like loners. I also go thru alot of juice flavors so i will often fill these with new flavors im not sure if i like or not as my ibtanks carry my adv's. I also like the colors of them look good with some jwrapped batteries i have.
I also have green and purple but they are only at fasttech.com for $6 a piece and they dont have the logo on them, othereise they are exactly the same just search dct and you will see them. The grren one on smoktech looks like ouke but in person it is an emerald color green.
The one ond only con i have found with the ibtank is that if my drip tip is not extra tight fitting i cannot get my tank off it will just spin.
I have to finish the tank and take it almost apart so i can spin The actual carto.ot a problem if your drip tip is tight fitting tho.
So i suggest giving them a try but if you find you like them go look at ibtanked.!
Also ibtank has the best prices in cartomizers from what i found anyway.
And ps i had some polypro crack with cinnamon red juice! So i wont use anything but glass now.