Selling off the rest of my hobby "stuff" feel free to check it out:
Saltwater Hobby Portable Refractometer 4 Salinity Tests - eBay (item 220472353350 end time Sep-03-09 12:22:15 PDT)
Saltwater Hobby Portable Refractometer 4 Salinity Tests - eBay (item 220472353350 end time Sep-03-09 12:22:15 PDT)