http://www.cabelas.com/product/Fishing/Fishing-Line/Fluorocarbon|/pc/104793480/c/104719680/sc/104338080/Berkley174-Vanish174-Transition-Line-Filler-Spool/738468.uts?
Wal Mart used to have it.
Realize that plain Vanish comes down to 2#....Transition only to 4#