KastKing DuraBlend Monofilament Leader Line
- 30 lb spool size, 0.50mm diameter
- 360 feet of line
- 80 lb line weight field, conflicting
- Monofilament, polyethylene material
- Clear color
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A thick clear monofilament line in a short length. The listing gives two different weight ratings, so confirm the breaking strength before buying.
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ASIN: B017MALDQKCategory: Monofilament Fishing Lines
Overview
KastKing sells this DuraBlend line as a clear monofilament made from polyethylene, wound on a spool at a heavy rating. The size field gives the diameter, while the separate line weight field lists a much higher figure.
A heavy, thick line holds up to rough use, and the clear color blends into the water. The mismatch between the two weight figures is the biggest issue, and the short length means a big reel will need more than one spool.
Who it's for
An angler making heavy rigs or topping up a large reel who values a clear thick line. Casual buyers matching line to a light rod should avoid it, and anyone needing certainty on strength must ask the seller first.
Pros and cons
- Thick line for heavy use
- Monofilament stretch cushions shocks
- Diameter is stated
- Weight ratings conflict
- Short length on spool
- Too thick for light reels
Performance notes
Diameter and strength govern how it behaves: thick mono resists abrasion but casts shorter and fills a spool fast. Monofilament stretches under load, which cushions a sudden pull but softens the hookset on long casts.
Specifications
| Brand | KastKing |
|---|---|
| Dimensions & fit | |
| Line Weight | 80 pounds (size field: 30 lb)higher than 92% of 39 monofilament fishing lines |
| Size | 30 LB (Wound on Spool) 0.50mm |
| Length | 360 feet |
| Item Weight | 0.01 Ounces |
| Construction & materials | |
| Material | Polyethylene |
| Color | Clear |
| Other details | |
| Fishing Line Type | Monofilament |
Closest rivals on specs
Ande PC-1/4-40 Monofilament Line- Line Weight 80 vs 40 lb (+100%)
- Size 30 vs 40 pounds (-25%)
Reaction Tackle Nylon Monofilament Fishing Line- Line Weight 80 vs 40 lb (+100%)
- Size 30 vs 40 pounds (-25%)
ANDE PCW50-50 Mono Leader Wrist Spool 50 lb- Line Weight 80 vs 50 lb (+60%)
- Size 30 vs 50 pounds (-40%)
Frequently asked questions
How should I store KastKing DuraBlend-3 line?
The listing gives no care or storage instructions. It lists the material as polyethylene and the length as 360 feet.
What is the real breaking strength of KastKing DuraBlend-3?
The listing is inconsistent. The line weight says 80 pounds, while the size field says 30 LB wound on spool with a diameter of 0.50mm.
Is the KastKing DuraBlend-3 braided?
No. The listing gives monofilament as the technique.