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First Cast Fishing
  • Reaction Tackle Monofilament, 40 lb, 420 yd, Clear7 photos
  • Reaction Tackle Monofilament, 40 lb, 420 yd, Clear, photo 2 of 7
  • Reaction Tackle Monofilament, 40 lb, 420 yd, Clear, photo 3 of 7
  • Reaction Tackle Monofilament, 40 lb, 420 yd, Clear, photo 4 of 7
  • Reaction Tackle Monofilament, 40 lb, 420 yd, Clear, photo 5 of 7
  • Reaction Tackle Monofilament, 40 lb, 420 yd, Clear, photo 6 of 7
  • Reaction Tackle Monofilament, 40 lb, 420 yd, Clear, photo 7 of 7

Quick take

40-pound monofilament line with low memory and UV reactivity for freshwater and saltwater fishing.

This is a clear nylon monofilament sold on a 420-yard spool in 40 lb test, a weight suited to leaders and heavy rigs. Nylon stretches under load, which cushions a hookset, and the low-memory design lets it come off the spool smoothly. It ties with the common knots, so it suits anglers spooling their own reels for bass, catfish or surf.

Best for

  • Medium to heavy bass and pike tackle
  • Saltwater inshore fishing where 40 lb is standard
  • Anglers who need visibility in low light with UV reaction

Skip if

  • You fish light line under 20 lb for panfish
  • You need ultra-high sensitivity

Strengths

  • Zero water absorption maintains strength when submerged
  • UV-reactive yellow and green options glow under ultraviolet light
  • Low-memory formula casts smoothly from spinning and baitcasting reels

Trade-offs

  • 40 lb test is overkill for small panfish and trout
  • Thicker line has more water resistance on casts
  • UV-reactive colors are more visible to fish in clear water

Fishing fit

Water
  • Freshwater
  • Saltwater

Specifications

Specifications
Typemonofilament line
Test40 lb
Length420 yd
ColorClear
Diameter0.57 mm
StrengthZero water absorption

How to choose a color and size

Color

Colors and when to pick them
OptionsWhen to pick itConditions
ClearThis oneBlends in where fish see the line, in clear water and bright light.
  • Clear
  • Bright
Hi Vis GreenA low-visibility tint for clear to stained water.
  • Clear
  • Stained
Hi Vis Orange, YellowEasy to watch when you read bites from the line, most of all in low light.
  • Stained
  • Overcast
  • Low light
Blue CamoShows less against shadowy bottoms and in stained water.
  • Stained

Size

Sizes and when to pick them
OptionsWhen to pick itConditions
4lb (350 Yards), 4lb (3000 Yards)Light line for panfish, trout and small lures on ultralight gear.
  • Trout
  • Crappie
  • Panfish
6lb (350 Yards), 6lb (2400 Yards), 8lb (350 Yards), 8lb (2000 Yards), 10lb (350 Yards), 10lb (1600 Yards)An all-round test for bass and walleye on medium spinning gear.
  • Bass
  • Walleye
12lb (350 Yards), 12lb (1400 Yards), 15lb (350 Yards), 15lb (1200 Yards), 17lb (350 Yards), 17lb (1000 Yards), 20lb (350 Yards), 20lb (800 Yards), 20lb (3250 Yards)Heavier test for cover, bigger baits and pike.
  • Bass
  • Pike & musky
  • Grass
  • Wood
25lb (350 Yards), 25lb (600 Yards), 25lb (2400 Yards), 30lb (350 Yards), 30lb (500 Yards), 30lb (1950 Yards), 40lb (420 Yards), 40lb (1640 Yards), 50lb (330 Yards), 50lb (1230 Yards), 60lb (260 Yards), 60lb (950 Yards) and 7 moreThis oneHeavy line for thick cover, big fish and saltwater.
  • Pike & musky
  • Striped bass
  • Redfish
  • Grass
  • Docks

Which one should I pick?

Updated