The Frequency Full Sinking lines from Scientific Anglers are ideal for getting your flies down deep, right to where the fish are. The thin diameter cuts through the wind with ease, and the lines work great in stillwater situations where the fish are cruising steady in the water columns.

Available in 2 densities: Intermediate (sinks 1.5 inch per second) and Type IV Sinking (sinks 3.0 - 5.0 inch per second).

The Intermediate density is based around the braided multifilament core common to the Frequency range, while the Type IV is based around a monofilament core.