Scientific Anglers Sonar Titan Int/Sink 2/Sink 3 Fly Line
Get this: we took one of our most popular tapers, the Titan, drenched it in various mixtures of tungsten powder, and created a triple-density sinking fly line that will absolutely change the way you fish streamers forever. This is a fully tapered sinking line, so it casts like a floater, but provides a straight-line sinking connection to your streamer. The days of chucking and ducking are finally over. Welcome to the triple-density revolution.
- Two line sizes heavy for loading quickly and delivering the biggest flies to the furthest targets; use designated line weight for your rod
- Excellent turnover due to short, powerful head
- Triple density construction provides straight-line connection
| Line Weight | Length (ft) | Weight (g) |
|---|---|---|
| Sink 2 | 100 | 120 |
| Sink 3 | 100 | 150 |
FAQ
What is the difference between Sink 2 and Sink 3?
Sink 2 and Sink 3 differ in weight and sink rate. Sink 2 is lighter and suitable for shorter, faster sinking needs, while Sink 3 is heavier and provides a deeper, more consistent sink for longer distances.
Can this line be used with any fly rod?
Use the designated line weight for your rod to ensure optimal performance and compatibility.
Does this line have a specific casting length?
The line is designed for standard casting lengths, with a 100-foot length available in both Sink 2 and Sink 3 variants.




Diana Hughes –
This line changed how I fish streamers. It casts smoothly like a floater but sinks straight, so I no longer have to chase my flies. The sink rate is consistent and the turnover is fast. I’ve used it on both stillwater and moving water and it performs well in both.
Steven Walker –
Great for targeting deeper water. The triple density makes a noticeable difference in how the line behaves. It’s easier to load and keeps the fly on target. A bit heavier than expected, but worth it for the performance.
David Walsh –
I’ve tried several sinking lines before, and this one stands out. The straight-line sink is exactly what I needed. It’s durable, casts well, and doesn’t tangle easily. Perfect for streamer fishing in deep pools.