Just a tip as well, if you've got access to slare nut spanners, use them. Lets you get a better hold of the nuts on the lines and doesn't round them off like spanners can.

Might not be applicable to this model, but EG/DC have the fuel input going into the base of the filter and its a flare nut setup. You can do it with spanners but you risk ruining the nut on the line.