Scientific Anglers Frequency Sink Tip Fly Line
In moving water, getting flies below the surface while maintaining control can present a challenge. That’s why sink tip fly lines were introduced. We took this idea, put it at an affordable price point, and came up with the Frequency Sink Tip. Featuring a Type III 10′ sinking tip, the Frequency Sink Tip is great for streamer fishing from a boat, while wading, or just about anywhere—mall water fountains excluded.
- Ideal for streamers and wet flies for trout, steelhead, salmon, and smallmouth bass in moving water
- Fast-sinking 10’ tip sinks flies through the water column
- Mid-length head enhances control
- Best used in moving water
- Sink Rates: 2.5 – 4.0 ips (Type III)
| Feature | Detail |
|---|---|
| Line Type | Sink Tip |
| Tip Length | 10 feet |
| Sink Rate | 2.5 – 4.0 ips (Type III) |
| Best Use | Streamer and wet fly fishing in moving water |
| Target Species | Trout, steelhead, salmon, smallmouth bass |
FAQ
What makes the Frequency Sink Tip different from other sink tip lines?
The Frequency Sink Tip features a Type III 10-foot sinking tip with a mid-length head that provides better control and faster sinking through the water column, ideal for streamer and wet fly fishing in moving water.
Is this line suitable for use in still water?
No, this line is best used in moving water. It is designed to perform effectively in current, such as rivers or streams, where it helps get flies below the surface quickly.
What types of flies work best with this line?
Streamers and wet flies are ideal for this line, especially when targeting trout, steelhead, salmon, and smallmouth bass in moving water.



Deirdre Vaughan –
Used this line for streamer fishing on a river and found it to be very effective. The tip sinks quickly and keeps the fly below the surface without dragging. Great control when casting from a boat or while wading.
Joshua Springer –
Felt the mid-length head improved my casting accuracy. It’s perfect for targeting trout in moving water. Sink rate is consistent and the line holds up well in wind and current.
Wanda Hughes –
I’ve used it for both wading and boat fishing. The fast sinking action helps me get flies down where the fish are. No issues with tangles or line drag in the current.