Oups, I was talking about 901 carto, sorry I didnt read well 

JBTX1 showed me an alternative to use a 510 cartomizer connection on the UFS. I hope he weighs in on this.
Basically, you just get a Danco washer (I'll try to find a link) and just extend your 510 cartomizer through the lid of the UFS. I tried his and it worked great, but I haven't done it to mine, yet. Here are two pics, one in the UFS and one just showing the cartomizer and washer.
View attachment 38101 View attachment 38102
As I play around with it more, I'll make a thread.
Other: No, you don't use the atomizer extender and no, you don't need to put a hole in the carto.
This should work with dual coils too eh? I'd like to try this!
ok cool, just need to find one of these Danco washers. Are they commonly available at lowes or home depot? Or is ordering online necessary?
oh you snagged one? nice!
Home Depot, Lowe's. I'm trying to find the exact link, I think it's a beveled washer. Here's a pic with some back-lighting. Maybe it'll be clearer.
I was going to suggest to Imeo to try a Longer Acrylic piece with an extended 510 adapter at the top for a larger capacity tank. and if he made the longer acrylic piece just right, it could also fit your carto without any added parts.
As an Optional purchase of course
-Zor
Nut instead of mouth piece yes? It does make sense .
I wish i'm so smart![]()
yes yes exactly. much simpler and great for cartos. Beautifulremember AVS with the second ring that sits on the first big refilling cap. So if we make this ring we are ok Zu![]()