may i throw in a suggestion?
ERA by Budz Worx
it is smaller than what is being suggested, and is not a 22mm atty.
Mine is bottom fed compatible, and i also upgraded to the AFC cap.
the AFC can be opened up to go from an insanely open draw, to completely shut...
it has 6x 0.9mm air holes. which are completely hidden, even when full open.
the smaller chamber is a bit of a tight squeeze, but i can still make dual coil builds even with my stubby fingers while on the couch.
The total price may throw back a lot of people, but i have yet to use an atty that puts as big a smile on my face.
This is it on my 18650 Caravela.
as a self proclaimed cloud chaser... i am pleased.