Never used it, but was doing some "traditional" Xmas online shopping ;D and came accross it.
Seems like a good idea for transfering spare fuel to main tank when at sea on a longer than usual passage that requires a prudent extra fuel capacity onboard - haven't ordered one as not sure that the hose is a universal thread, plus I have 52 gallons onboard :P
(http://www.compass24.com/produktbilder2/1/mittel/0132130_r1_FS07im.jpg)
http://www.compass24.com/watersports/abnetshop.pl?nummernliste=132130 (http://www.compass24.com/watersports/abnetshop.pl?nummernliste=132130)
So after you pump it a few times, siphon pressure takes over? That's what the page seems to say...
errrr.......yeah ;D
Looking at it again, it is a bit over egged with that nozzle.
But I like the fixed end to the fuel can. Probably be better without the nozzle and simply a decent hose length (that can be stuffed a long way into the main fuel tank and with an inline siphon pump (thingy :P)........was thinking on a smaller boat transfering fuel is a PITA from less elbow room and increased bounciness ;D