These kevlar fuel cells come as a pair in either 2.7 l or 3.7 l.
The 2.7 l cell will ensure 10 minutes of flight with the Merlin VT-80 power package.
The 3.7 l cell will ensure 10 minutes of fligth with the Merlin M140XBL power package.
The option is delivered with a set of plumbing hardware.