just an FYI on the Kanger Protank...
they are (or maybe were?) one of my favorite tanks, up until about 20 minutes ago. like a dummy, i put my ecig in my chest pocket. i was out doing a few things, and bent over to pick smething up and BAM!...OUT IT CAME, mouthpiece first on the blacktop and put a nice little nick in the mouthpiece rim. i thought to myself, no problem, its stainless, ill just polish it out a bit. i pulled out some 1400 grit sandpaper and started poising the nick. all of the sudden, the mouthpiece area i was polishing turned COPPER...what the h*ll?...polished a little more and it turned BRASS.....so these are NOT as advertized by many resellers 'solid stainless steel and pyrex" they are "pyrex and plated brass"...meaning ill have to likely throw this one away as i cant use brass. for some reason im allergic to it and it causes me blisters......goes to show you how devious and deceptive manufactures can be. i have a call into the place i ordered them from originally. when i spoke to them, they told me "they are solid stainless" a few min ago. i told them maybe they should pull one out and sand a little n it and see for sure.....hes supposed to call me back.....