KastKing DuraBlend Monofilament Leader Line
- Line Weight: 80 lb
- Size: 30 pounds
- Length: 360 Feet
- Technique: Monofilament
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A standard clear monofilament spool from a well-known budget line brand, useful as a workhorse mainline rather than a specialty line.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B017MALDQKCategory: Monofilament Fishing Lines
Overview
KastKing's DuraBlend-3 is a monofilament fishing line spooled at 360 feet, listed at a 30 lb test and 0.50mm diameter, with an 80 lb line weight also noted in the spec data, so pound test appears to vary by size selection. It's a clear, general use mono line rather than a specialty braid or fluorocarbon.
Monofilament remains a budget-friendly staple for anglers who want stretch and forgiveness on the hookset, and KastKing has built a following selling these lines at accessible prices in bulk spool lengths. The 360 foot spool length here fits mid-size reel spooling rather than a small backup spool.
- 360 feet per spool
- Clear monofilament line
- 30 lb test at 0.50mm listed
Who it's for
Anglers who want a straightforward, affordable monofilament line for general spinning or baitcasting setups. Not the right pick for anglers specifically wanting a fluorocarbon leader or braided mainline, since this is mono.
Pros and cons
- 360 foot spool covers most reel sizes
- Clear color for low visibility
- Budget-friendly monofilament option
- Pound test data is inconsistent across the listing
- Not a fluorocarbon or braided option
Performance notes
Monofilament lines like this stretch under load, which helps absorb hook sets and headshakes, and the clear color keeps it low-visibility in most water. Listed pound test varies across the spec data, so confirm the exact test strength on the spool before loading a reel.
Specifications
| Brand | KastKing |
|---|---|
| Dimensions & fit | |
| Line Weight | 80 lbhigher than 92% of 40 monofilament fishing lines |
| Size | 30 pounds |
| Length | 360 Feet |
| Item Weight | 0.01 Ounces |
| Construction & materials | |
| Material | Polyethylene |
| Color | Clear |
| Included components | |
| Pieces | 360 feet |
| Other details | |
| Technique | 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
Is the KastKing DuraBlend-3 monofilament or braid?
It is monofilament, per the listed technique.
How long is the spool?
360 feet.
What pound test is it rated for?
The listing shows a 30 lb test at 0.50mm diameter, though an 80 lb line weight is also referenced, so confirm the exact test strength before ordering.