OPSIN FLUOROCARBON

Fluorocarbon Leader 4–300 lb

Slow-extruded in Japan for the lowest published diameter at every pound test. Pick your class, or jump straight to your pound test below.

Pick your pound test
Filter Right
21 products
FeaturedMost relevantBest sellingAlphabetically, A-ZAlphabetically, Z-APrice, low to highPrice, high to lowDate, old to newDate, new to old

Filter

Sort by
Down
Opsin 4 lb fluorocarbon leader (0.16 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 4 lb (0.16 mm) | 100 yd
$18.99
4 lb0.16 mm100 yd · $18.99In stock
Opsin 6 lb fluorocarbon leader (0.20 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 6 lb (0.20 mm) | 100 yd
$18.99
6 lb0.2 mm100 yd · $18.99In stock
Opsin 8 lb fluorocarbon leader (0.22 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 8 lb (0.22 mm) | 100 yd
$19.99
8 lb0.22 mm100 yd · $19.99In stock
Opsin 10 lb fluorocarbon leader (0.25 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 10 lb (0.25 mm) | 100 yd
$19.99 Sold Out
10 lb0.25 mm100 yd · $19.99 · Sold outSold out · restock updates on the product page
Opsin 12 lb fluorocarbon leader (0.29 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 12 lb (0.29 mm) | 100 yd
$22.99 Sold Out
12 lb0.29 mm100 yd · $22.99 · Sold outSold out · restock updates on the product page
Opsin 15 lb fluorocarbon leader (0.35 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 15 lb (0.35 mm) | 100 yd
$25.99
15 lb0.35 mm100 yd · $25.99In stock
Opsin 20 lb fluorocarbon leader (0.37 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 20 lb (0.37 mm)
From $18.99
20 lb0.37 mm50 yd · $18.99 · Sold out100 yd · $29.99In stock
Opsin 25 lb fluorocarbon leader (0.40 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 25 lb (0.40 mm)
From $20.99 Sold Out
25 lb0.4 mm25 yd · $20.99 · Sold out50 yd · $32.99 · Sold outSold out · restock updates on the product page
Opsin 30 lb fluorocarbon leader (0.44 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 30 lb (0.44 mm)
From $23.99 Sold Out
30 lb0.44 mm25 yd · $23.99 · Sold out50 yd · $36.99 · Sold outSold out · restock updates on the product page
Opsin 35 lb fluorocarbon leader (0.50 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 35 lb (0.50 mm)
From $27.99
35 lb0.5 mm25 yd · $27.9950 yd · $39.99 · Sold outIn stock
Opsin 40 lb fluorocarbon leader (0.55 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 40 lb (0.55 mm)
From $29.99 Sold Out
40 lb0.55 mm25 yd · $29.99 · Sold out50 yd · $42.99 · Sold outSold out · restock updates on the product page
Opsin 50 lb fluorocarbon leader (0.59 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 50 lb (0.59 mm)
From $34.99
50 lb25 yd · $34.9950 yd · $49.99In stock
Opsin 60 lb fluorocarbon leader (0.73 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 60 lb (0.73 mm)
From $42.99 Sold Out
60 lb0.73 mm25 yd · $42.99 · Sold out50 yd · $59.99 · Sold outSold out · restock updates on the product page
Opsin 80 lb fluorocarbon leader (0.83 mm) spool — slow-extruded Japanese fluorocarbon, built-in magnetic core
Opsin Fluorocarbon Leader – 80 lb (0.83 mm)
From $48.99 Sold Out
80 lb0.83 mm25 yd · $48.99 · Sold out50 yd · $69.99 · Sold outSold out · restock updates on the product page
Opsin Big Game 100 lb fluorocarbon leader — 0.93 mm, 30 m package
Opsin Big Game 100 lb Fluorocarbon Leader — 0.93 mm
From $57.99
100 lb0.93 mm30 m · $57.99 · Sold out110 m · $174.99In stock
Opsin Big Game 130 lb fluorocarbon leader — 1.06 mm, 30 m package
Opsin Big Game 130 lb Fluorocarbon Leader — 1.06 mm
From $74.99
130 lb1.06 mm30 m · $74.99110 m · $224.99In stock
Opsin Big Game 150 lb fluorocarbon leader — 1.18 mm, 30 m package
Opsin Big Game 150 lb Fluorocarbon Leader — 1.18 mm
From $79.99
150 lb1.18 mm30 m · $79.99110 m · $239.99In stock
Opsin Big Game 170 lb fluorocarbon leader — 1.28 mm, 30 m package
Opsin Big Game 170 lb Fluorocarbon Leader — 1.28 mm
From $89.99
170 lb1.28 mm30 m · $89.99110 m · $269.99In stock
Opsin Big Game 200 lb fluorocarbon leader — 1.44 mm, 30 m package
Opsin Big Game 200 lb Fluorocarbon Leader — 1.44 mm
From $99.99 Sold Out
200 lb1.44 mm30 m · $99.99 · Sold out110 m · $299.99 · Sold outSold out · restock updates on the product page
Opsin Big Game 250 lb fluorocarbon leader — 1.57 mm, 30 m package
Opsin Big Game 250 lb Fluorocarbon Leader — 1.57 mm
From $109.99
250 lb1.57 mm30 m · $109.99110 m · $339.99In stock
Opsin Big Game 300 lb fluorocarbon leader — 1.84 mm, 30 m package
Opsin Big Game 300 lb Fluorocarbon Leader — 1.84 mm
From $119.99
300 lb1.84 mm30 m · $119.99110 m · $369.99In stock

Every spool here comes off the same slow extrusion line in Japan — the reason Opsin runs the thinnest diameter at every pound test. Thinner fluorocarbon means your fly-lined sardine swims like it isn't pinned, and pressured bluefin in clear water never get a look at your leader before they commit. From 4 lb for inshore work to 300 lb big-game shots, every weight is 100% fluorocarbon: near-invisible underwater, faster-sinking than mono, and built to shrug off kelp, rocks, and a tail-wrapped yellowtail. Pick your pound test below.