Ryuji, I use Kindermann tanks with Hewes reels for both 35mm and 120. The Kindermann tanks are twice as thick at other SS tanks and the tops fit very snuggly without a trace of leaking and about the only way I can imagine damaging one is to set fire to it. The Hewes reels are equally bullet proof--as sound as a Guinness keg. I advice you bite the bullet and go with the Kindermann/Hewes combination. You'll only have to do it once.(posted 8182 days ago)