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  • Seaguar STS Fluorocarbon Leader, 100 yd, 4 lb Test7 photos
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Seaguar · Fluorocarbon Line

Seaguar STS Fluorocarbon Leader, 100 yd, 4 lb Test

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Options

Color: ClearSize: 4lbs/100yds7 sizesChange

Color: Clear

  • Clear

Size: 4lbs/100yds

Item weight
1.6 ounces

Quick take

A 100 yd 4 lb fluorocarbon leader that sinks fast and resists abrasion in rocky streams.

Seaguar's STS is a 100% fluorocarbon leader for trout and steelhead, sold on 100-yard spools in several line strengths. Its diameter is smaller than monofilament and it sinks quickly, which helps get bait down to the feeding zone, and its low visibility underwater suits clear, pressured water. The 4 lb spool fits finesse presentations, while the 15 lb spool suits heavier cover and faster current.

Best for

  • Finicky trout in clear water
  • Salmon and steelhead on leader systems
  • Streams with rocky structure and snags

Skip if

  • You need leader stretch; fluorocarbon is stiff
  • You want economy line for practice

Strengths

  • Nearly invisible underwater due to low refractive index
  • Smaller diameter than mono sinks faster to the strike zone
  • Excellent abrasion resistance against rocks and rough cover

Trade-offs

  • Fluorocarbon is stiffer and less forgiving than monofilament
  • Tight knots required; fluorocarbon is slippery to knot

Fishing fit

Species
  • Trout
  • Salmon & steelhead
Water
  • Freshwater
Techniques
  • Casting

Specifications

Specifications
Typefluorocarbon leader
Material100% fluorocarbon
Length100 yd
Test weight4 lb
DiameterSmaller than monofilament

How to choose a color and size

Size

Sizes and when to pick them
OptionsWhen to pick itConditions
4lbs/100ydsThis oneLight line for panfish, trout and small lures on ultralight gear.
  • Trout
  • Crappie
  • Panfish
6lbs/100yds, 8lbs/100yds, 10lbs/100ydsAn all-round test for bass and walleye on medium spinning gear.
  • Bass
  • Walleye
12lbs/100yds, 15lbs/100yds, 17lbs/100ydsHeavier test for cover, bigger baits and pike.
  • Bass
  • Pike & musky
  • Grass
  • Wood

Which one should I pick?

Versions of this product on this site
VersionColorSuits
Seaguar STS Fluorocarbon Leader, 100 yd, 4 lb TestColor:ClearSuits:—
Seaguar STS Fluorocarbon Leader, 15 lb, 100 yd, ClearColor:ClearSuits:—

Updated