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🎣 Reel in the big ones with confidence — the leader that never lets you down!
The HI-SEAS Grand Slam Monofilament Fishing Leader is a 100-yard, 150 lb test nylon line designed for serious anglers targeting big game in both fresh and saltwater. Its clear black color offers stealth for spearfishing, while its advanced nylon blend delivers superior abrasion resistance, shock absorption, and knot strength. Perfect for bottom fishing, trolling, and offshore use, this leader balances toughness with supple handling for smooth casting and reliable performance on every catch.
| ASIN | B004UUHEOG |
| Best Sellers Rank | #26,782 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #38 in Monofilament Fishing Line |
| Brand | Hi-Seas |
| Brand Name | Hi-Seas |
| Breaking Strength | 150 Pounds |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 565 Reviews |
| Fishing Line Type | Monofilament |
| Global Trade Identification Number | 00092271156357 |
| Included Components | 1 Coil |
| Item Length | 100 Yards |
| Item Type Name | Monofilament Fishing Leader |
| Item Weight | 0.24 Pounds |
| Line Size | 0.05 Inches |
| Line Weight | 150 lb |
| Manufacturer | Hi-Seas |
| Manufacturer Part Number | C-1-150BK |
| Material | Nylon |
| Material Type | Nylon |
| Model Number | C-1-150BK |
| Size | .051 in/ 1.30 mm, 100 yd |
| Strand Type | Single |
| UPC | 092271156357 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year |
K**R
Strong and Reliable line
I picked up this monofilament for saltwater fishing where I needed dependable strength and abrasion resistance, and it’s proven to be a solid line choice on serious outings. Strength & performance: This line feels strong for its rated pound test. It handles heavy pulls and large fish without stretching to the point of losing control — solid backbone and shock absorption when big fish surge. Abrasion resistance: Great resistance against rough structure, rocks, and barnacles. When fishing around structure or reef, this line holds up better than lighter, thinner monofilament options. Casting & handling: Line spools smoothly and casts without excessive memory or looping issues. It doesn’t tangle easily and stays manageable on the reel, which makes long casting sessions less of a hassle. Visibility & stretch: Monofilament inherently has more stretch than braid, which helps cushion big runs but can reduce sensitivity compared to braid. It’s a trade-off I expected and acceptable for this type of fishing. Things to know: If maximum sensitivity or ultra-long-distance casting is your priority, braided line still has the edge. But for a balanced all-around line with durability and shock absorption, this performs very well. Overall: A strong, reliable monofilament line that’s especially good in saltwater and big game scenarios where abrasion resistance and strength matter. Great value for the money!
C**V
Great for flasher bumpers
Used this 200lbs line to make my own flasher and 360 bumpers. Crimps great with metal crimps, nice and stiff, and has survived without issue pulling in some Pacific Northwest salmon. I have enough to make enough bumpers for myself and my friends for a lifetime. Price was right too.
P**E
All Good
Holding up heavy(55lbs) items in my yard for 3 years now. Sun, snow and wind, this line is strong.
E**Z
Great line
Great line, i fish for Uluas (giant travelly) on the Big island of Hawaii and it does great. Caught my biggest ulua at 80lbs, i use 200lb test and it rubbed on a lava rock shelf for 25mins and did not cut. Well worth it
B**N
Tested and proven!
I bought 15lb of this because I couldn't find the rating in my usual brand (Berkley Trilene) and I'm very happy with the results. The thickness seems on par for the rating, and the knot and stretch feels exactly like my Berkley line. A lot of monofilament and especially flouro will get deformed and weak as you knot, but this line held up! I've caught a few bluefish 18"+ on this line without any trouble and after inspection the line did not seem to show any signs of integrity loss. I'll definitely be purchasing again.
P**C
👍🤙🏽
🤙🏽👍
R**G
Leader line
Great supplier of quality fishing leader line at a reasonable price
N**S
Texas Rigs
Use this for my duck decoy Texas rigs. Works wonders. Way better than the line I used to use that used to tangle in the decoy bag before even throwing them out.
K**T
It's abrasion resistant I use the 150 for Conger bite proof trace
This line has a tough coating and is idea for bite proof sea traces
D**M
Good quality. Very strong.
Very string line. I’m impressed.
C**P
Five Stars
Perfect for what I wanted it.
A**O
Excelente!
3 días de pesca y solo usé un tramo de 40 cm aguantó perfectamente 10 mantarrayas, 1 jurel y varios atroces, incluso en una atorada que pensé se iba a quedar el jig, pues le jalé y un anzuelo salió derecho y otro se rompió.... pero el jig salió.... muy recomendable el mono de 40 lbs...
E**O
Buena calidad
Me funcionó muy bien muy buen lider
Trustpilot
2 weeks ago
1 month ago