Scientific Anglers Absolute Fluorocarbon Trout Tippet
- Line Weight: 5X
- Size: 5X
- Color: Clear
- Fishing Line Type: Absolute Fluorocarbon Freshwater Trout Tippet
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A standard 5X fluorocarbon tippet spool sized for fly anglers building lighter leaders in clear water conditions.
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ASIN: B07X9J5MLVCategory: Fluorocarbon Fishing Lines
Overview
A 5X fluorocarbon tippet spool from Scientific measuring roughly 98 feet, sold clear for fly leader and tippet building.
The 13 inch length field appears to describe packaging rather than the line itself; the pieces field of 98.42 feet is the figure that matches a standard tippet spool size. 5X sizing places this in the lighter tippet range used for smaller flies and more leader-shy fish, and fluorocarbon material gives it lower underwater visibility and less stretch than nylon monofilament.
- 5X fluorocarbon tippet
- Approximately 98.42 feet per spool
- Clear color
- Scientific 135474
Who it's for
Fly anglers who tie their own leaders and tippets and need a 5X diameter in fluorocarbon for clearer water or leader-shy fish. Not the choice for anglers needing heavier tippet sizes or wanting nylon's extra stretch for shock absorption.
Pros and cons
- 5X diameter suited to smaller flies and clear water
- Fluorocarbon sinks and resists water absorption
- Roughly 98 feet per spool for repeated leader building
- Lower stretch than nylon means less shock absorption on strikes
- 5X is a lighter tippet size, not suited to larger or harder-fighting fish
Performance notes
Fluorocarbon has a refractive index closer to water than nylon, so it is less visible underwater at the same diameter, and it sinks rather than floats, which helps get subsurface flies down without added weight. The tradeoff is that fluorocarbon has less stretch than nylon, so tippet knots need to be tied carefully to avoid weak points.
Specifications
| Brand | Scientific Anglers |
|---|---|
| Dimensions & fit | |
| Line Weight | 5X |
| Size | 5X |
| Item Length | 0.4 yards |
| Construction & materials | |
| Color | Clear |
| Material Type | Fluorocarbon |
| Included components | |
| Unit Count | 98.4 feet |
| Included Components | 1 Absolute Fluorocarbon Freshwater Trout Tippet |
| Warranty & support | |
| Warranty Description | Contact Manufacturer |
| Other details | |
| Fishing Line Type | Absolute Fluorocarbon Freshwater Trout Tippet |
| Strand Type | Single |
| Breaking Strength | 4.6 Pounds |
Frequently asked questions
What tippet size is the Scientific 135474 line?
It is sized 5X, a lighter diameter used for smaller flies and more leader-shy fishing conditions.
How much line is on the Scientific 135474 spool?
The listing states 98.42 feet per spool.
Is the Scientific 135474 fluorocarbon or nylon?
It is fluorocarbon, which sinks and is less visible underwater than nylon monofilament of the same diameter.