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Scientific Anglers

Scientific Anglers Sonar Titan Full Intermediate Slow-Sinking Blue/Pale Green 210 Gr

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Intermediate Slow-sinking

Design for precise presentations just

Braided Multifilament

Core supports turnover and stability

Total Line

Length is 105 feet for

Wf-6-i Line

A 33.5-foot head length

Sink Rate

Is 1.25 ips for a

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SKU: 126380-840309126380

Overview

Built for anglers who want controlled presentations just under the surface, this intermediate fly line is suited to situations where fish are holding shallow and a slower sink rate is useful. Its braided multifilament core is intended to support turnover and stability, while the 105-foot total length provides room for longer casts. With a WF-6-I profile and a 33.5-foot head, it offers a practical setup for temperate-water fishing when a subtle, slow-sinking presentation is the goal.

Why Hunters Choose the Scientific Anglers

Slow Sink

Rate supports precise presentation just

Braided Multifilament

Core helps provide turnover and

105-foot Total

Length offers generous casting distance

Intermediate Density

Suits temperate-climate fishing conditions

Wf-6-i Line

Weight and 210-grain rating are

Key Features

  • Intermediate slow-sinking design for precise presentations just below the surface.
  • Braided multifilament core supports turnover and stability in the water.
  • Total line length is 105 feet for extended casting distance.
  • WF-6-I line weight with a 33.5-foot head length.
  • Sink rate is 1.25 ips for a controlled intermediate presentation.
  • Blue/Pale Green colorway with 210-grain rating.

Best Used For

  • Anglers targeting fish holding just below the surface with a slow-sinking presentation.
  • Fly fishers needing a WF-6-I line for controlled, precise casts.
  • Users wanting 105 feet of line for longer casting distance on the water.
  • Anglers fishing temperate climates where intermediate density is appropriate.
  • Those who value braided multifilament core stability and consistent turnover.

Specifications

ColorBlue/Pale Green
CoreBraided multifilament core
DensityIntermediate
Grain Weight210gr / 13,6g
Head Length33.5' / 10,2m
Head Weight230gr / 14,9g
Line WeightWF-6-I
Product TypeFly line
Sink Rate1.25 ips (Intermediate)
Total Length105.0' / 32,0m

Pros

  • Slow sink rate supports precise presentation just below the surface.
  • Braided multifilament core helps provide turnover and line stability.
  • 105-foot total length offers generous casting distance.
  • Intermediate density suits temperate-climate fishing conditions.
  • WF-6-I line weight and 210-grain rating are clearly specified.

Considerations & Trade-offs

  • Intermediate sink rate places the fly just below the surface, so it is less suited to situations that call for a deeper presentation.
  • At 105 feet total length, it offers useful casting range, but the line is still built around a specific WF-6-I / 210 gr setup rather than a broad all-purpose profile.
  • The 33.5' head length is a deliberate trade-off: it supports controlled presentation, but may feel less versatile than longer-head lines for some casting styles.
  • Its intermediate density is noted as suitable for temperate climates, so conditions outside that range may call for a different line choice.

Suggested Comparisons

  • Fly lines
  • Intermediate sinking fly lines
  • Weight-forward fly lines
  • Freshwater fly fishing lines

Suggested Accessories

  • Fly reel backing
  • Leader material
  • Fly line cleaner
  • Fly box

Frequently Asked Questions

What type of sink rate does this line have, and what is it intended for?

It is an intermediate, slow-sinking line with a sink rate of 1.25 ips. The description says it is designed to present flies just below the surface where fish are most active.

What line weight is this model built for?

The listed line weight is WF-6-I.

How long is the line overall?

The total length is 105 feet.

What core construction is specified for this fly line?

It uses a braided multifilament core, which the description says provides turnover and stability in the water.

Is this line described as suitable for all water temperatures?

No. The description specifically says the Titan's intermediate density makes it suitable for temperate climates, but it does not provide broader temperature guidance.