So I switched over to tanked cartos a couple of months ago, and 5 ibtanked later, they are now my go to, all day every day, device of choice. I've tried a variety of different cartos, and I had preferred the unflanged, but found them to be a real pita to refill. ( I like the unflanged, because they seem to sit more flush with whatever device I'm attaching them to.) Invariably one of two things would happen. I would fill, and then push the carto too far into the tank causing juice to leak out the bottom, or I would push the drip tip in, and push the carto back out the bottom. It seemed that there was about 1 micron of space that seemed "perfectly seated," and I had a hard time finding it! lol
So I had a bunch of these little atomizer seats. (I got them from 101vape, and I noticed today that they are on sale.) I was just using them to store clearos and carto tanks when I wasn't using them, but discovered today that they are perfect for filling.
Step 1. Screw the carto and tank all the way into the seat, and insert your refilling tool.

Step 2. Carefully slide the tank up the carto and filling tip.

Step 3. fill with your liquid of choice!

Step 4. Push the tank all the way back down until it is right against the seat. Go ahead and install your drip tip! No worries about pushing the carto back out of the tank. Can't be done.
Unscrew from the seat, and you have a perfectly positioned unflanged carto! (with no liquid spilling all over your desk lol)

This has been a TheJakeBailey production.
So I had a bunch of these little atomizer seats. (I got them from 101vape, and I noticed today that they are on sale.) I was just using them to store clearos and carto tanks when I wasn't using them, but discovered today that they are perfect for filling.
Step 1. Screw the carto and tank all the way into the seat, and insert your refilling tool.

Step 2. Carefully slide the tank up the carto and filling tip.

Step 3. fill with your liquid of choice!

Step 4. Push the tank all the way back down until it is right against the seat. Go ahead and install your drip tip! No worries about pushing the carto back out of the tank. Can't be done.

This has been a TheJakeBailey production.