CS-5 Introducing the new "CS-5" tank from Independent Gas Tank Co. Due to the overwhelming response to our "Strait Up" Tank we decided to give you the next step in the perfect fusion of old and new school. Perfect for your Chopper project or slammed Pro-Street. Tanks can be built narrow or wide -2 1/4" tunnel standard, tunnel can be adjusted to sit high or low on the frame Available for 2" thru 5" stretched frames Available w/ seat pocket or pointed Screw bung standard or Flush caps available 4 -underneath mounts Choice of threaded petcock fitting either 3/8" NPT or 22mm