FS - Polyp Labs PO4 media
 

Read all about it here, on J&L's site:

http://www.jlaquatics.com/phpstore/s..._ID=plb-opti03

It costs $44.95 plus taxes and shipping from them, so probably close to $60 total.

Never been opened, I had two before, but found the media to small for my big reactor (custom made 18 inch tall one:twised:), and I want $35 plus shipping for it.

The big plus with this media is that you can recharge it up to about 5 times, and it is easy to recharge.

http://www.jlaquatics.com/images/polyplab/opti-phos.jpg