*applause for find*
This thing is genius! I must try and find, I'm in Canada. I too have a 30" tank and I normally siphon with a med. sized airline tube, but always hated that the water ended up in the bucket and adding 2-5g in a 150g annoys me lots!
Thanks for find! Gonna look around at LFS and maybe even rig up a DIY setup (but for <10$ i doubt i will even bother) ^^