Semi-Hex
Enfant Terrible
I did a build last year of a '13 Tundra. I looked everywhere for a custom tank builder and decided to go with the tanks built by Adventure Trailers. I wanted a large tank---at least 35 gallons---and I wanted it mounted in the center of the truck and of a size that took up minimum space. AT nailed it. They built me a baffled, drinking water safe, black, with all the custom fittings I needed. I am extremely pleased. Many thousand of miles off road without a single issue. Take a look at:
http://www.expeditionportal.com/forum/threads/136352-Custom-Tundra-Bed-Storage-Phase-1
I have a 33 gallon custom water tank from Adventure Trailer also. They did a great job with the build, communications and were plain easy to work with.