I spent some big bucks buying the California Diving company's hard case, which has a built-in tank rank. I love it...then saw something very similar at Home Depot for $60! I bought one to lug all my coaching supplies around in, and have noticed that it's every bit as rugged for about a quarter the cost. It has an extendable handle, and the wheels actually roll easier. The California Diving company sells a kit that you can buy to convert the small wheels to larger, easier rolling ones, but it costs $50!
If I had it to do all over again, I'd buy the Stanley wheeled tool case from Home Depot, cutting a large hole in the lid just over the wheels to accomodate a tank (or two, which the one from CA Diving company doesn't!).
If I had it to do all over again, I'd buy the Stanley wheeled tool case from Home Depot, cutting a large hole in the lid just over the wheels to accomodate a tank (or two, which the one from CA Diving company doesn't!).