Maybe a slight exageration As with all large notable things I take pictures of, it's compared to my groovy little phone It's a Permacool originally bought in one of Caz's GB's ages ago, never fitted. Here is a blurb from their site about how amazing and wonderful their cores are: It is really quite large, I have gone to a thicker slightly more compact type which suits my application better. It comes with 2 of 1/2" hose barb connectors. No hose, no sandwich plate, no remote filter mount etc, so don't ask Wouldn't be too hard to make work on a TT as the lines are already there. $100 + post.