Scientific Anglers Sonar Uniform Sink IV
The idea behind the graduated densities of the SONAR Uniform Sink sinking fly line is a brilliant one: instead of a single density that can sink at an uneven rate due to the fly, the front of the Uniform Sink lines sinks faster than the rear, all but guaranteeing a straight-line connection to the fly. In stillwater and lake fishing situations, this is a must-have, non-negotiable, fish-catching attribute.
- Ideal for streamers and wet flies for steelhead, salmon, and bass in moving water
- Front of fly line sinks slightly faster than rear, ensuring straight-line sinking
- Sink 4 = 4.0 ips
- SA ID – SA SONAR US WF X & (X = line weight) (& = sink rate)