1 / 4Daiwa J-Braid x4 JB4U15-300DG, 15 lb, 300 yd
JB4U15-300DG: Daiwa J-Braid x4 is a dark-green, four-strand braided fishing line sold on a 300-yard filler spool. Its listed 15-pound test and polyethylene material suit anglers choosing a specific line strength and spool length, but the listed diameter is inconsistent.
At a glance
- Four-carrier Dyneema braid, described as a 4-strand construction.
- 300-yard filler spool in dark green.
- Listed as 15-pound test.
Often bought together
Pros and cons
Pros
- A 300-yard spool provides a substantial length for filling or refreshing a reel.
- The four-strand construction and 15-pound test are specified for buyers comparing line build and strength.
Technical specifications
11 specifications| Brand | Daiwa |
|---|---|
| Model | JB4U15-300DG |
| Line type | Braided |
| Strand construction | 4-strand |
| Line weight | 15 pounds |
| Length | 300 yard |
| Color | DARK GREEN |
| Material | Polyethylene |
|---|
| Weight listed | 2.24 ounces |
|---|
| Diameter in product features | 0.008 diameter |
|---|---|
| Line size in details | 0.01 inches |
What to know before buying
Listing details to confirm
The listing gives two different diameter figures: 0.008 diameter in the feature text and 0.01 inches in the line-size details. Confirm which diameter applies to the selected spool before buying. The manufacturer also describes the braid as four-carrier Dyneema while the material field says polyethylene.
What’s in the box
Included- 300 yards of fishing line
Who is it for?
Customer reviews on Amazon
- 5 stars
63% 63% - 4 stars
23% 23% - 3 stars
0% 0% - 2 stars
0% 0% - 1 star
14% 14%
Aggregate ratings lean positive, with most ratings in the four- or five-star categories, but a smaller one-star share shows that experiences are not uniformly favorable. With no review comments supplied, the ratings do not explain what customers liked or disliked. They cannot establish how this line performs for a particular reel or fishing use.
Frequently asked questions
How long is this spool?
The listed length is 300 yards.
What is the listed line strength?
The details and feature text identify it as 15 pounds or 15-pound test.
What diameter is the line?
The listing is inconsistent. Feature text says 0.008 diameter, while the line-size field says 0.01 inches. Confirm the applicable figure before purchase.
What does x4 refer to?
The listing describes the line as a four-carrier braid and identifies its strand type as 4-strand.

Alternative options

Daiwa JB4U6-150FY, Filler Spool
$9.97

Daiwa JB4U6-150FY, Filler Spool
$11.99

Daiwa J-Braid 300M 8-Strand Woven Round Braid Line
$30.14

Daiwa J-Braid 300M 8-Strand Woven Round Braid Line
$24.99

RUNCL 8 Strands Braided Fishing Line - High Visibility Colored Braid Line, Super Strong, Abrasion Resistant, No Stretch, 328yds/546yds/1093yds, 12lb to 100lb for Saltwater or Freshwater Fishing
$52.88

KastKing Superpower Braided Fishing Line, Abrasion Resistant Braid Line | Zero Stretch, Strong Knot Strength, Smaller Diameter, Enhanced Sensitivity, Long Casting, Superior Strength
$9.89

AKvto Braided Fishing Line 1000yds 8-Strand PE Line, Emerald Green Zero Stretch, High Sensitivity Abrasion Resistant, Saltwater Freshwater, 10-100LB (0.15mm-0.55mm)
$39.99

ANGRYFISH 12+1 Strands Braided Fishing Line, Green/White Metered Braid Line | Ultra-Smooth, Low Stretch, 20% Stronger & Wear Resistant Braid for Lure/Casting, Saltwater/Freshwater Anglers, 15-120LB
$18.99

ROCRETA Geode Braided Fishing Line, 8 Strands Colored Braid Lines, 10-200lb | Abrasion Resistant, Zero Stretch, Smooth Casting, Low Memory, High Sensitivity, Smaller Diameter, 300yds/500yds/1000yds
$16.98

RUNCL PowerBraid Fishing Line 4/8/9 Strands, Braided Fishing Line 300/500/1000Yds - Seamless Weaving Tech, Enhanced Coating Tech, Zero Stretch, High Sensitivity, Smaller Diameter - Braid Line 15-115LB
$16.58

ROCRETA Aura Braided Fishing Line, 8 Strands Colored Braid Lines, 10-100lb | Abrasion Resistant, Zero Stretch, Super Smooth Cast, Rainbow Colored, Superline for Extra Visibility, 300yds/500yds/1000yds
$16.98

DASEE 8 Strands Braided Line, Fishing Line, Zero Stretch, 10-100LB, 300/500Yds, Abrasion Resistance, Braided Fishing Line, PE Line
$14.98

























