KastKing TriPolymer Advanced Monofilament Line
- Line Weight: 10 lb
- Size: 10LB-300Yds
- Length: 300 Yards
- Technique: Monofilament
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A 300 yard, 10 lb test monofilament spool from KastKing's low refraction TriPolymer line, suited to everyday freshwater spooling.
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ASIN: B0BPSRMKG3Category: Monofilament Fishing Lines
Overview
KastKing's TriPolymer monofilament line ships in 300 yard spools at 10 lb test, built around a low light refraction nylon formula and finished in a green tint here.
Low light refraction describes how the line bends light underwater; a lower refraction index generally means the line is less visible to fish, which is the main selling point of TriPolymer-style monofilament over standard nylon. At 10 lb test and 300 yards, this spool suits light to medium freshwater tackle rather than heavy offshore use.
- 10 lb test, 300 yard spool
- Nylon monofilament
- Low light refraction formula
- Max green color
Who it's for
Freshwater anglers spooling reels for bass, panfish or similar species who want a line marketed for lower visibility. Not sized for heavy saltwater or big game trolling, where higher test lines are standard.
Pros and cons
- 300 yards is enough to fully respool most reels
- Nylon formula marketed for lower underwater visibility
- 10 lb test suits general freshwater use
- 10 lb test is too light for heavy or saltwater species
Performance notes
Monofilament stretches more than braid or fluorocarbon, which helps absorb hookset shock on lighter tackle but reduces sensitivity to strikes. The nylon base here is tuned for lower light refraction rather than for abrasion resistance.
Specifications
| Brand | KastKing |
|---|---|
| Dimensions & fit | |
| Line Weight | 10 lblower than 56% of 40 monofilament fishing lines |
| Size | 10LB-300Yds |
| Length | 300 Yards |
| Construction & materials | |
| Material | Nylon |
| Color | MAX GREEN |
| Included components | |
| Pieces | 1 |
| Other details | |
| Technique | Monofilament |
Closest rivals on specs
Frequently asked questions
How much line is on one KastKing TriPolymer spool?
300 yards at 10 lb test.
What does low light refraction mean for this line?
It refers to a nylon formula designed to bend light closer to how water does, intended to make the line less visible to fish.
What color is this specific spool?
Max green.