I think these Haase tanks or one like them has been shown on the forum at some point but while digging around for some info on Apricus solar hot water on Youtube I found these videos that show a large folding fiberglass solar tank being built:
Haase installation Phase 1
Haase Installation Phase 2
Haase installation Phase 3
Haase Installation Phase 4
Their US office is in Atlanta. Evidently all the HX comes with the tank. Tank sizes up to 10,500 gallons, all non-pressurized.
Edit: I knew it looked familiar. Seen in this post.
