Scientific Anglers Sonar Grand Slam Clear Sink Tip Fly Line is built for anglers chasing the ultimate saltwater challenge tarpon, bonefish, and permit.

Featuring an 8-foot clear intermediate sink tip, this line delivers stealth and precision for ultra-wary fish while helping your fly reach the strike zone faster. Overweighted by .75 sizes, it loads modern saltwater rods quickly and turns over long leaders and heavy flies with ease. The short, powerful head design ensures efficient casting in windy conditions, while Tropi-Core technology keeps the line stiff, slick, and reliable in tropical heat.