Rio sells two Double Taper trout fly lines.

The lower priced (but very good) Mainstream Trout Double Taper in sizes DT3F to DT8F, cost around $40

or the higher quality

Rio Trout LT (Light Touch) Double Taper in sizes DT000F to DT6F, cost around $75

Check out their web site to read how the lines compare and how they are tapered.

Larry ---sagefisher---