SA Frequency Sink Tip Fly Line WF6F/S - Great Feathers

Scientific Anglers Amplitude Textured Bass Bug Fly Line - The Compleat Angler

Frequency Sink Tip - Type III

Scientific Anglers Sonar Titan Sink Tip - Frontier Fly Fishing

Scientific Anglers Frequency Magnum Glow Fly Line - AvidMax

Frequency Magnum Fly Line

Scientific Anglers Fly Lines - W. W. Doak and Sons Ltd. Fly Fishing Tackle

Frequency Sink Tip Fly Line

SF Hi-Viz Fly Fishing Sinking Tip Line Weight Forward Taper Floating Fly Line Sinking Line for Freshwater 100FT IPS5 WF10F/S Fluorescent Yellow&Black : Sports & Outdoors

Scientific Anglers Sonar Titan Sink Tip - Intermediate

SA Frequency Sink Tip - Iron Bow Fly Shop

Scientific Anglers Fly Lines - W. W. Doak and Sons Ltd. Fly Fishing Tackle

Scientific Angler Lines

SA Frequency Boost Line - Iron Bow Fly Shop

Scientific Anglers Sonar Titan Sink Tip Fly Line F/S - The Compleat Angler

SA Frequency Sink Tip - Iron Bow Fly Shop