All tanks are aluminum construction and DOT approved. See below for tank specs.
5 Gallon Aluminum Tank:
24"L x 8"D x 10"H
(4) 1/2" Ports (Two On Each End)
(1) 1/4"Port On Bottom
7 Gallon Aluminum Tank:
33"L x 8"D x 10"H
(6) 1/2" ports
(2) 1/4" ports
8.5 Gallon Aluminum Tank:
32"L x 9"D x 12.5"H
(8) 1/2" Ports
12 Gallon Aluminum Tank:
44"L x 10"D x 12.5"H
(8) 1/2" Ports