SwampFlier-RCU------- Sorry, I've got the Robart fueler mounted on 2 of my 40 size planes right now and will be putting one on the Kaos (60 size) I am putting together too. Works well when you can't get at the carb to pull off the fuel line for fueling and don't want to use a DOT either. IMHO Some of the new remote needles can make fueling more of a challenge than the old needles did. I do not personally care for 3-line systems, if you (or others) do that is fine.