Premium fluorocarbon blend: Delivers durability and performance in every cast
Optimized stretch: Improves hookset success by allowing fish more time to take the bait
Low memory design: Enhances castability and minimizes tangles for longer, smoother lines
Superior abrasion resistance: Withstands rocks, vegetation, and structure for reliable use in rugged conditions
Versatile application: Suitable for moving baits, crankbaits, swimbaits, glidebaits, and more in both freshwater and saltwater
Summarized by Shop
K9 Fluorocarbon · Technical DatasheetOriginal Fluoro
A fluorocarbon blend built for dependable castability, dialed stretch for better hooksets, and rugged abrasion resistance — trip after trip, fresh or salt.
TypeFluorocarbon blend
Test Range4 – 25 lb
Diameter0.17 – 0.45 mm
Spools300 · 550 · 2,000 yd
ColorClear
WaterFresh +
Test Range
4 to 25 lb
Diameter
0.17–0.45 mm (0.0067–0.0177 in)
Spool Lengths
300 yd, 550 yd, 2,000 yd
Color Options
Clear, Blue, Black, Gray
Material
Fluorocarbon blend
Application
Freshwater and saltwater
Summarized by Shop
4.9
34 ratings
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I’ve been a fan of K9 flouro since it first came out. Mostly I used 12lb for cranking because it casts great, has little memory and useful stretch. The 14lb is equally agreeable. It’s an excellent product.
T
Ted · 14 days ago
Been using k9 for 4 years now, specifically their 12lb n 17lb. Ill never use another. Its silky smooth an cast forever, very abrasion resistant. Highly recommend!!!
M
Mark · June 30, 2026
The strongest 4lbs Fluoro I have ever used! It’s my go to line for casting at summertime slabs.