At least, I THINK it's a giantomizer. It's one I already own and I want a couple more. I suspect I picked this up at some retail store this summer. This is the closest image I could find on Google. Mine fits & works perfectly on a silver EGO VV twist.
This image shows what must be a tank, mine is a giant carto with filler. (no window) It came with a large, very soft rubber tip (that collects a lot of condensation -btw).
