Type 2 Cylinder 18.3 x 60 / 194L / 17.0 GGE / 367 LBS. This is a package price that includes the tank, WTELEV or WTMANV valve, plug, and 18B bracket.
This 16.7 GGE Cylinder will hold almost same quantity of gas under fast fill as a 21 GGE Type IV while giving 3" of more bed length in pickup trucks. It is also much safer in impact and in case of fire while being much less expensive.
SEE Type 2 Cylinder WT1655, Type 1 Cylinder CP1459 or Type 4 Cylinder CP2160 FOR OTHER ALTERNATIVES.