Reaction Tackle 100% Pure Fluorocarbon
Diameter chart, reel capacity & backing guide
Reaction Tackle's 100% Pure Fluorocarbon can be used as main line or leader material. This guide covers Clear 6-25 lb. Compare the 125- and 300-yard spools with the shorter 50-yard packages available in some strengths.
- Construction
- 100% fluorocarbon
- Listed strengths
- 6-25 lb
- Line type
- Fluorocarbon main line
Mainline or a separate terminal section
Use the larger packages when fluorocarbon will be the working line you cast, and decide leader length separately when using it ahead of braid. Do not confuse this product with Reaction's fluorocarbon-coated nylon. The checked diameter rises from 0.34 mm at 15 lb to 0.40 mm at 17 lb, so even a small step in the test label can change spool volume substantially.
How much Reaction Pure Fluorocarbon will fit?
Calculated estimates, not measured fills. Stop at the reel manufacturer's fill level even if some line remains.
Reaction Tackle Fluorocarbon diameter chart
Clear 100% Pure Fluorocarbon variants only. 6 and 8 lb have 125/300 yards; checked 10-25 lb also offer 50-yard packages.
| Strength | Inches | mm | Spools (yd) |
|---|---|---|---|
| 0.008268 | 0.210 | 125, 300 | |
| 0.009449 | 0.240 | 125, 300 | |
| 0.010236 | 0.260 | 50, 125, 300 | |
| 0.011811 | 0.300 | 50, 125, 300 | |
| 0.013386 | 0.340 | 50, 125, 300 | |
| 0.015748 | 0.400 | 50, 125, 300 | |
| 0.016929 | 0.430 | 50, 125, 300 | |
| 0.017717 | 0.450 | 50, 125, 300 |
Choosing your Reaction Pure Fluorocarbon strength
Choose the test for the rod, presentation and cover before estimating fill. Fine 6-10 lb line and thick 20-25 lb line have different handling demands.
The official 15/17 lb diameter step is 0.34 to 0.40 mm; use those exact values rather than interpolating a smooth progression.
A 50-yard supply package is not a normal full-spool assumption. It may suit terminal leaders or a deliberately short working section, while longer fills need an appropriate package.
This is a source-based specification and setup guide, not a hands-on review or comparative performance test.
Want a guided recommendation?
Continue in the Setup WizardSame pound test, different diameters
At your selected strength
Loading diameter comparisons...
What changes with another line?
Nearby diameters in the line database
| Line | Strength | Inches | Difference |
|---|---|---|---|
| Loading line database... | |||
Backing, working line & leaders
Choose the role first
For a full mainline fill, estimate reel capacity and compare 125- or 300-yard packages. For leader use, select terminal length instead of filling the reel with the whole supply.
Keep backing below usable fluoro
A shorter fluorocarbon working section can sit over backing. Leave enough usable line for casts, fish runs and retying so the connection stays buried.
Distinguish the coated product
Reaction sells fluorocarbon-coated fishing line separately. Use the package explicitly labeled 100% Pure Fluorocarbon for these numbers.
How Much Fits on These Reels?
Estimated full-spool capacity for the Reaction Pure Fluorocarbon strength selected above, with no backing. These are calculated examples, not physical tests or recommendations for every pairing.
Loading capacity estimates...
Reaction Pure Fluorocarbon questions, answered
Is this the coated 350-yard line?
No. Reaction's fluorocarbon-coated nylon is a separate product. These rows are 100% Pure Fluorocarbon.
Are 50-yard packages leaders only?
The manufacturer allows this material as mainline or leader. Fifty yards is supplied length, not a prescription for how long the leader should be or a guarantee of a reel fill.
Why does 17 lb take noticeably more space than 15 lb?
The current official chart lists 0.40 mm at 17 lb and 0.34 mm at 15 lb. Capacity follows physical diameter, not equal pound-test increments.
Specifications & sources
Checked September 13, 2026 against the official product information linked below. Official mm values are converted to inches explicitly. They are manufacturer specifications rather than ReelCalc measurements. Offered specifications do not establish current stock; this is not an independent diameter measurement.
Calculations use the catalog's listed inch diameters. Published inch and millimeter values may differ slightly because of rounding.
- Reaction Tackle official product information 100% Pure Fluorocarbon Clear exact product, not fluorocarbon-coated nylon or Ice Fluorocarbon. Manufacturer mm list and clear variant package lengths verified.