Description
Description
Scientific Anglers Frequency Full Sink is a versatile all-purpose sinking line built for stillwaters, deep river pools, and delivering streamers at controlled depths. With Sink 3 and Sink 6 options, it covers mid-depth to deep presentations efficiently. The taper loads easily while delivering stable turnover in cold and moderate freshwater conditions.
Technologies
- AST – Slickness additive that reduces friction, improves shootability, and enhances durability.
- Welded Loops – Durable welded front loop on Sink 3 for quick leader changes. Sink 6 lines come with a braided loop.
- Braided Multifilament Core – Supple cold-water core used in Sink 3 and Sink 6 for smooth casting and stable sink profiles.
Temperature Rating
- Cold / Moderate – 0°C to 25°C
Target Species
- Trout
- Yellowfish
- Barbel
- Bass
- Carp
Types of Flies
- Nymphs
- Streamers
Additional Features
- Sink 3: approx. 2.5–3.5 ips for mid-depth presentations.
- Sink 6: approx. 5.5–6.5 ips for reaching deeper feeding fish quickly.
- Highly effective for streamer fishing in stillwaters.
- Easy-loading taper ensures consistent casting performance.
Line Chart
| Line Weight | Head Length | Total Length | Grain Weight* |
|---|---|---|---|
| WF-5-S | 10.4 | 25.9 | 140 gr / 9.1 g |
| WF-6-S | 11.0 | 25.9 | 160 gr / 10.4 g |
| WF-7-S | 11.0 | 25.9 | 185 gr / 12.0 g |
| WF-8-S | 11.6 | 25.9 | 210 gr / 13.6 g |
*Grain weight measured at first 9.1 m.
Frequency Sinking Line Features
Scientific Anglers Frequency Full Sink Lines offer excellent value and versatility for anglers on a budget. Featuring AST slickness and Welded Loops, these lines are available in two sink rates to take your flies deep—right where the big fish hold.

