Scientific Anglers Frequency Intermediate Sinking Line
There are times where you need to get your fly underwater, but not too far under the surface. That’s when you need the Frequency Intermediate fly line. Built with a slow sink rate, the Frequency Intermediate will pull streamers and wet flies under surface chop to get them where the fish are. Perfect for stillwater situations, and good for chucking streamers in rivers as well, at this price, it would be silly not to get one.
- Especially effective for fishing streamers
- Thin diameter cuts through wind
- Ideal for use in stillwater situations
- Mid-length head for enhanced line control
- Sink Rate: 1.25 ips (Intermediate)
- Braided multifilament core
| Specification | Value |
|---|---|
| Sink Rate | 1.25 ips (Intermediate) |
| Line Type | Fly Line |
| Core Material | Braided Multifilament |
| Best Use | Stillwater, River Streamers |
| Head Length | Mid-Length |
FAQ
What is the sink rate of the Frequency Intermediate line?
The sink rate is 1.25 inches per second (ips), which is classified as intermediate.
Is this line suitable for use in rivers?
Yes, it is good for chucking streamers in rivers due to its slow sink rate and wind resistance.
How does the line perform in windy conditions?
The thin diameter helps it cut through wind, providing better control and stability in gusty conditions.


Hannah Stewart –
This line works great in calm lakes. The sink rate is just right for getting streamers down without going too deep. I’ve used it for both stillwater and light river conditions. The mid-length head gives me better control when casting.
Donna Bower –
Felt like a solid choice for intermediate sink. It doesn’t drag much in the wind and keeps streamers under the surface where fish are feeding. A bit more expensive than basic lines, but worth it for the performance.
Leah Robertson –
Perfect for wet fly fishing in quiet waters. The braided core feels strong and the sink rate is consistent. I’ve used it in several lakes and it’s proven reliable.