2800cc Motor System "Earthquake L - 75mm" Package
The 2800cc Motor System "Earthquake L - 75mm" Package comes with a 2800cc 75mm tank, RGL injector bell, 1 standard L fuel grain, 1 HyEFX L fuel grain, tie straps, and motor adapter (fits over fuel grain to make 75mm and includes built in venting tube that vents out the bottom to eliminate cutting hole in airframe) which give you the following engine combinations:
L625FX with RGL orifice
L575 with RGL orifice
Required for Launch: Basic Fill / Fire Launch Control System (previously called GSE), J/L Fill Stem Assembly, Remote Relay Module and 500' Control Cable.