A 4 Gallon capacity tank!
Comes with a BLACK cap only
x2 Race tank was designed to work with all C4, TNT, & factory mod chambers. Also available with or without battery tray . 
Includes battery strap & 2 pick-ups ( 1 return, 1 vent ) Comes with internal fill but can be made to work with stock OEM fill by request! Does include the OEM filler neck block off polate.