Overview

The Scientific Anglers Sonar Sink 25 Coldwater is a go-to sinking line for anglers targeting bass, pike, musky, and other predatory fish in cooler conditions. Featuring a 25-foot fast-sinking head paired with an intermediate running line, this design gets flies down quickly while maintaining smooth turnover and easy casting. The compact sinking head allows anglers to launch large streamers, articulated patterns, and weighted flies with minimal effort, while the intermediate running line helps keep the connection tight for better strike detection and hook-setting power. Built specifically for coldwater environments, the line remains supple and tangle-free even in chilly conditions, making it a dependable choice throughout the season.

Finished in Ivory/Dark Green for stealth and visibility balance, and offered in grain weights from 150 to 350 grains, the Sonar Sink 25 Coldwater provides precise depth control and powerful performance. Whether you’re stripping streamers for smallmouth or dredging for trophy musky, this line is engineered to get the job done.Read More +