Denitrification Filters?

[joshinjosh]

anyone know anything about these?
http://cgi.ebay.com/Aquarium-Denitr...pplies_Fish&hash=item5d2ea4fc68#ht_500wt_1156

 

[Palting]

I was curious myself so I googled Lahaina Aquarium systems. Apparently is a company based in Devon UK owned by a rock star of some sort. Should say "was" a company, since it apparently has been closed for several years. That item on sale seems to be a controller of some sort, a part of a system, so it won't work without the whole system. No wonder it's "unused". There are no other parts!