Actually, Dubro calls it " the fill it" system: http://www2.towerhobbies.com/cgi-bin...?&I=LXAHE1&P=7

But who's counting. I like these: http://www2.towerhobbies.com/cgi-bin...4&I=LXES36&P=K if there is a solid structure to mount it on such as a fuselage wall. This allows you to keep a 2 line system very easily with NO chance of flooding the carb. I don't think it would work on most flexible cowlings very well.