This wall tube 6 3/4 inches high. Threaded. Hex end. I'd like to see a collaboration among us wall tube collectors to developing a number system for these. I don't think we have one. I'm calling it green Aqua as compared to the blue Aqua one on the right. I'm selling the one that's damaged. 80% of the circumference rim is broken off, up to 3/4 "in height by the full thickness. One hex edge perfect. The other four of them in good shape- but not perfect- and one has a 50% edge removal. $100 plus postage.