This one has the good controller and high quality fuel line and a halfway decent fuel filter. Crappy hose clamps, but they'll work. Pump is pre-primed with diesel (don't make a mess), but you'll still need to prime for the hoses.How to prime (and avoid E-10 errors):From the OFF position, press the Settings and Down Arrow at the same time. The screen will say H OFF. Press UP and then it will say H ON. Press OK. The pump will run and prime for a few minutes, and then stop, though the screen won't tell you.Repeat until fuel reaches the unit itself. I had to do mine six times, but I had a lot of fuel line, and I used a larger diameter than it came with.