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Scientific Anglers Amplitude Infinity Salt Fly Line


Saltwater Solution

Rather than pack a pile of rods on your next fishing trip, consider taking your favorite fast action rod rigged up with a Scientific Anglers Amplitude Infinity Salt Fly Line. Designed to be vastly more versatile than traditional fly lines, this line will cover almost all of your saltwater bases. With SA’s robust Tropi-Core construction that withstands equatorial heat, extended head length for long range accuracy, and half size heavy construction for larger flies and windy days, you'll have complete confidence when the guide starts yelling and pointing from the poling deck. Whether you can get it done in the heat of the moment, now rests squarely on you.


  • Textured fly line for nearly all of your saltwater fishing
  • Floating taper front helps line float higher on the water's surface
  • Shooting texture on body reduces drag while casting
  • AST Plus slickness additive keeps your line slicker than ever before
  • Tropi-Core technology stays stiff in hot weather conditions
  • General purpose taper accommodates a wide range of fly types
  • Heavy-for-size design works especially well with fast-action rods
  • Welded loops for easy line attachment


  • Line Type: Floating
  • Best Use: Saltwater Fly Fishing
  • Grain Weight: [WF-8-F] - 225g; [WF-9-F] - 260g; [WF-10-F] - 305g
  • Head Length: [WF-8-F] - 49.0'; [WF-9-F] - 50.0'; [WF-10-F] - 51.0'
  • Total Length: 100'