Scientific Anglers Sonar Series Fly Lines

 

The Sonar series takes your fly and puts it right in front of the fish. Whether you're throwing streamers for trout, big flies for barra, or even fishing stillwaters, we have the perfect sinking line for you, Get down and stay down with Sonar.

 

Sonar Full Intermediate

Sonar Titan Full Intermediate

Full intermediate fly line for temperate waters

With a name like Titan, this line promises big things. Luckily, it does more than deliver. The SONAR Titan Full Intermediate fly line is designed to manhandle even the largest flies, and with its intermediate density, it allows you to fish your most heinous flies just below the surface. Right where they need to be.

  • Excellent turnover due to short, powerful head
  • Slow sink rate gets flies just below the surface
  • For temperate climates
  • Braided multifilament core
  • Sink Rate: 1.25 ips (Intermediate)
  • SA ID - SA SONAR TITAN WF X I (X = line weight)
Line weight Head length Total length Grain weight
WF6I 33.5' 105.0' 210
WF7I 33.5' 105.0' 240
WF8I 33.5' 105.0' 280
WF9I 33.5' 105.0' 330
WF10I 33.5' 105.0' 380
WF11I 33.5' 105.0' 450
WF12I 33.5' 105.0' 500
Sonar Sink 25 Cold

Sonar Sink 25 Cold

Sinking-head fly line for cold water

When it comes to fishing streamers in cold water, it’s difficult to beat the SONAR Sink 25. Designed with a short 25' fast-sinking head, the Sink 25 sinking fly line gets flies deep extremely quickly and is paired with a large diameter handling section for excellent line control. When it’s time to get down and dirty, the Sink 25 has your back.

  • 25' extra-fast sinking head with handling line
  • For coldwater applications
  • An excellent streamer line for trout
  • Low-tangle design increases shooting distance
  • Floating running line
  • Super-fast sink: 4.0 - 8.0 ips, sinks 4' - 15'
  • Braided multifilament core
  • SA ID - SA SONAR SINK 25 ### (# = grain weight)

Line weight Head length Total length Grain weight
5 - 6 25.0' 105.0' 150
6 - 7 25.0' 105.0' 200
7 - 8 25.0' 105.0' 250
8 - 9 25.0' 105.0' 300
9 - 10 25.0' 105.0' 350
11 - 12 25.0' 105.0' 400
12 - 13 25.0' 105.0' 450
Sonar Sink 30 Cold

Sonar Sink 30 Cold

Sinking-head fly line for cold water

When it comes to fishing streamers in cold water, it’s difficult to beat the SONAR Sink 30. Designed with a short 30′ fast-sinking head, the Sink 30 sinking fly line gets flies deep extremely quickly and is paired with a large diameter handling section for excellent line control. When it’s time to get down and dirty, the Sink 30 has your back.

  • 30’ extra-fast sinking head with handling line
  • Intermediate running line
  • Super Fast Sink: 4.0 – 8.0 ips, sinks 4’ – 15’
  • Replaces Mastery Textured Coastal Express
  • Braided multifilament core
  • SA ID - SA SONAR SINK 30 C### (# = grain weight)

Line weight Head length Total length Grain weight
5 - 6 30.0' 105.0' 150
6 - 7 30.0' 105.0' 200
7 - 8 30.0' 105.0' 250
8 - 9 30.0' 105.0' 300
9 - 10 30.0' 105.0' 350
11 - 12 30.0' 105.0' 400
12 - 13 30.0' 105.0' 450
Sonar Sink 30 Warm

Sonar Sink 30 Warm

Sinking-head fly line for warm water

What’s the most difficult part about throwing streamers? Actually throwing streamers. Casting a sinking line with a weighted fly has never been a breeze, but our SONAR Sink 30 offers you one of the most castable sinking fly lines we’ve ever created. Get down fast with the 30' sinking head without fearing for your life while casting. You can kiss your hardhat goodbye.

  • 30' extra-fast sinking head with handling line
  • Intermediate running line
  • Sink rate: super-fast sink 4.0 - 8.0 ips, sinks 4' - 15'
  • Braided multifilament core
  • SA ID - SA SONAR SINK 30 ### (# = grain weight)

Line weight Head length Total length Grain weight
5 - 6 30.0' 105.0' 150
6 - 7 30.0' 105.0' 200
7 - 8 30.0' 105.0' 250
8 - 9 30.0' 105.0' 300
9 - 10 30.0' 105.0' 350
11 - 12 30.0' 105.0' 400
12 - 13 30.0' 105.0' 450
Sonar Sink 30 Clear

Sonar Sink 30 Clear

Intermediate sinking fly line for warm water

So part of the equation is getting flies in front of fish. The next part is not spooking them while doing so. Our SONAR Sink 30 Clear fly line offers the same casting benefits of the SONAR Sink 30 taper, but substitutes a 30' slow-sinking clear head. When stealth isn’t an option, the best choice is to go clear.

  • 30' clear sinking head to get flies just below the surface
  • Intermediate running line
  • Sink rate: Intermediate = 1.25 ips'
  • Braided multifilament core
  • SA ID - SA SONAR SINK 30 ### (# = grain weight)

Line weight Head length Total length Grain weight
5 - 6 30.0' 105.0' 150
6 - 7 30.0' 105.0' 200
7 - 8 30.0' 105.0' 250
8 - 9 30.0' 105.0' 300
9 - 10 30.0' 105.0' 350
11 - 12 30.0' 105.0' 400
12 - 13 30.0' 105.0' 450
Sonar Sink Tip

Sonar Sink Tip

Sinking-tip fly line

So you know where the fish are holding. You’ve done your research. But you just don’t know how deep they are. Luckily, the SONAR Sink Tip fly line offers a variety of solutions for all of your depth-finding needs. Just below the surface? Try the Sink 3. Holding steady in the shadowy depths? Get the Sink 5. Experimentation is the name of the game, so maybe it makes sense to try all three densities.

  • Ideal for streamers and wet flies for trout, steelhead, salmon, and bass in moving water
  • Sink-tip rates:
    • Sink 3 = 2.50 - 4.25 ips
    • Sink 4 = 3.75 - 5.25 ips
    • Sink 5 = 5.50 - 6.50 ips
  • Braided multifilament core
  • SA ID - SA SONAR SINK TIP & WF X FS (X = line weight, & = sink rate)

Line weight Head length Total length Grain weight
WF5F/S 35.0' 105.0' 140
WF6F/S 38.0' 105.0' 160
WF7F/S 41.0' 105.0' 185
WF8F/S 44.0' 105.0' 210
Sonar Titan Int/Sink 3/Sink 5

Sonar Titan Int/Sink 3/Sink 5

Triple-density sinking fly line

Get this: we took one of our most popular tapers, the Titan, drenched it in various mixtures of tungsten powder, and created a triple-density sinking fly line that will absolutely change the way you fish streamers forever. This is a fully tapered sinking line, so it casts like a floater, but provides a straight-line sinking connection to your streamer. The days of chucking and ducking are finally over. Welcome to the triple-density revolution.

  • Loads quickly and delivers the biggest flies to the furthest targets
  • Excellent turnover due to short, powerful head
  • Triple-density construction provides straight-line connection to fly
  • Mastery texturing reduces friction, providing longer casts, easier pick-up, and increased durability
  • For temperate climates
  • Sink rates:
    • Intermediate = 1.25 ips
    • Sink 3 = 2.5 - 3.5 ips
    • Sink 5 = 4.5 - 6.0 ips
  • Braided multifilament core
  • SA ID - SA SONAR TITAN INTS3S5 X (X = line weight)

Line weight Head length Total length Grain weight
WF6S 33.5' 105.0' 210
WF7S 33.5' 105.0' 240
WF8S 33.5' 105.0' 280
WF9S 33.5' 105.0' 330
WF10S 33.5' 105.0' 380
WF11S 33.5' 105.0' 450
WF12S 33.5' 105.0' 500
Sonar Titan Hover/Sink 2/Sink 4

Sonar Titan Hover/Sink 2/Sink 4

Triple-density sinking fly line

Get this: we took one of our most popular tapers, the Titan, drenched it in various mixtures of tungsten powder, and created a triple-density sinking fly line that will absolutely change the way you fish streamers forever. This is a fully tapered sinking line, so it casts like a floater, but provides a straight-line sinking connection to your streamer. The days of chucking and ducking are finally over. Welcome to the triple-density revolution.

  • Loads quickly and delivers the biggest flies to the furthest targets
  • Excellent turnover due to short, powerful head
  • Triple density construction provides straight-line connection to fly
  • Shooting Texture reduces friction, providing longer casts, easier pick-up, and increased durability
  • For temperate climates
  • Braided multifilament core
  • Sink Rates:
    • Hover = 1.00 ips
    • Sink 2 = 1.75 – 2.75 ips
    • Sink 4 = 4.0 – 5.0 ips
  • SA ID - SA SONAR TITAN WF HS2S4 X (X = line weight)

Line weight Head length Total length Grain weight
WF6S 33.5' 105.0' 210
WF7S 33.5' 105.0' 240
WF8S 33.5' 105.0' 280
WF9S 33.5' 105.0' 330
WF10S 33.5' 105.0' 380
WF11S 33.5' 105.0' 450
WF12S 33.5' 105.0' 500
Sonar Titan Sink 3/Sink 5/Sink 7

Sonar Titan Sink 3/Sink 5/Sink 7

Triple-density sinking fly line

Get this: we took one of our most popular tapers, the Titan, drenched it in various mixtures of tungsten powder, and created a triple-density sinking fly line that will absolutely change the way you fish streamers forever. This is a fully tapered sinking line, so it casts like a floater, but provides a straight-line sinking connection to your streamer. The days of chucking and ducking are finally over. Welcome to the triple-density revolution.

  • Loads quickly and delivers the biggest flies to the furthest targets
  • Excellent turnover due to short, powerful head
  • Triple density construction provides straight-line connection to fly
  • Shooting Texture reduces friction, providing longer casts, easier pick-up, and increased durability
  • For temperate climates
  • Braided multifilament core
  • Sink Rates:
    • Sink 3 = 2.5 – 3.5 ips
    • Sink 5 = 4.5 – 6.0 ips
    • Sink 7 = 7.0 – 8.0 ips
  • SA ID - SA SONAR TITAN WF S3S5S7 X (X = line weight)

Line weight Head length Total length Grain weight
WF8S 33.5' 105.0' 280
WF9S 33.5' 105.0' 330
WF10S 33.5' 105.0' 380
WF11S 33.5' 105.0' 450
WF12S 33.5' 105.0' 500
Sonar Titan Clear Tip

Sonar Titan Clear Tip

Sinking clear-tip fly line

Who says you can’t be stealthy when you’re chucking foot-long streamers at pike or muskie? The SONAR Titan Clear Tip fly line provides all the advantages of our Titan taper - easy loading and effortless turnover to name a few - and tops it off with an intermediate sinking clear head. When your quarry has eyes the size of dinner plates (almost), every little bit of stealth helps.

  • Loads quickly and delivers the biggest flies to the furthest targets
  • Excellent turnover due to short, powerful head
  • Slow sink rate gets flies just below the surface
  • Mastery texturing reduces friction, providing longer casts, easier pick-up, and increased durability
  • For temperate climates
  • Sink rate: Intermediate = 1.25 ips
  • Monofilament core
  • SA ID - SA SONAR TTN CLEAR WF X I (X = line weight)

Line weight Head length Total length Grain weight
WF6F/I 33.5' 105.0' 210
WF7F/I 33.5' 105.0' 240
WF8F/I 33.5' 105.0' 280
WF9F/I 33.5' 105.0' 330
WF10F/I 33.5' 105.0' 380
WF11F/I 33.5' 105.0' 450
WF12F/I 33.5' 105.0' 500
Sonar Titan Tropical Clear Tip

Sonar Titan Tropical Clear Tip

Sinking clear-tip fly line for tropical climates

Who says you can’t be stealthy when you’re chucking streamers and poppers in the heat? The SONAR Titan Tropical Clear Tip fly line provides all the advantages of our Titan taper—easy loading and effortless turnover to name a few—and tops it off with an intermediate sinking clear head. When your quarry has eyes the size of dinner plates (almost), every little bit of stealth helps.

  • Loads quickly and delivers the biggest flies to the furthest targets
  • 15’ clear tip for stealthy presentations
  • Excellent turnover due to short, powerful head
  • Slow sink rate gets flies just below the surface
  • Tropi-Core technology for tropical climates
  • Sink Rate: 1.25 ips (Intermediate)
  • SA ID - SA SONAR TTN TRP CLR WF X FI (X = line weight)

Line weight Head length Total length Grain weight
WF8F/I 33.5' 105.0' 280
WF9F/I 33.5' 105.0' 330
WF10F/I 33.5' 105.0' 380
WF11F/I 33.5' 105.0' 450
WF12F/I 33.5' 105.0' 500
Sonar Titan Big Water Taper

Sonar Titan Big Water Taper

Slow-sinking line for big game

Every now and then, we come up with something in our lab that has the potential to change fly fishing forever. The SONAR Titan Big Water Taper is one of those creations. Built on the industry’s first 100lb monofilament core, the Titan BWT is the world’s strongest fly line and can handle even the world’s largest game fish. Papuan Black Bass? Check. Giant Trevally? Double check. If you’ve got a bucket list full of huge fish, we’ve got your line right here.

  • Loads quickly and delivers the biggest flies to the furthest targets
  • Excellent turnover due to short, powerful head
  • Specially designed for tropical environments
  • Built on a 100lb monofilament core
  • Tropi-Core technology for tropical climates
  • Sink rate: Intermediate = 1.25 ips
  • SA ID - SA SONAR BWT FI ### (### = grain weight)

Line weight Head length Total length Grain weight
9 - 11 33.0' 105.0' 350
10 - 12 33.0' 105.0' 450
Sonar Titan Max Sink

Sonar Titan Big Water Taper Max Sink

Fast-sinking line for big game

In designing our SONAR Big Water Taper series, we had one specific goal in mind: to create the world’s strongest fly line. Built on the industry’s first 100-lb. monofilament core, the SONAR Titan BWT Max Sink is built for the blue-water beasts of your dreams (or nightmares). With a super-fast sinking head and a core capable of pulling semi trucks from the depths (hyperbole), this is a line for 15-weight rods and fish that weigh more than you do.

  • Loads quickly and delivers the biggest flies to the furthest targets
  • Excellent turnover due to short, powerful head and short front taper
  • Specially designed for tropical environments
  • Mastery Texturing reduces friction, providing longer casts, easier pick-up, and increased durability
  • Built on a 100lb monofilament core for tropical climates
  • Sink Rate: Sink 6 = 6.0+ ips
  • SA ID – SA SONAR BWT ### (### = grain weight)

Line weight Head length Total length Grain weight
11 - 13 31.0' 105.0' 500
12 - 14 31.0' 105.0' 600
13 - 15 31.0' 105.0' 700
Sonar Hover

Sonar Stillwater Hover

For fishing flies just below the surface

One day, long ago, in a kingdom far, far away, we dreamed up a line that would sink, but not sink too much, one that would simply hover beneath the surface. Fast forward thousands of years and the SONAR Hover sinking fly line was born. Built with an extra-slow sink rate, the Hover is downright nasty when it comes to fishing streamers with a slow retrieve. It’s a legend, at least in our own minds.

  • Designed specifically for the demands of stillwater anglers
  • Based on our popular MPX Taper
  • Overweighted by a full line weight for multiple flies and long leaders
  • Extra-slow sinking hover (1 ips) for fishing the film
  • SA ID - SA STILLWATER HOVER WF X H (X = line weight)

Line weight Head length Total length Grain weight
WF4H 35.5' 105.0' 140
WF5H 37.5' 105.0' 160
WF6H 39.5' 105.0' 185
WF7H 41.5' 105.0' 210
WF8H 43.5' 105.0' 240
Sonar Stillwater

Sonar Stillwater Clear Camo

Camouflage line for sub-surface fishing
  • Designed specifically for the demands of stillwater anglers
  • Based on our popular MPX Taper
  • Overweighted by a full line weight for multiple flies and long leaders
  • Full Intermediate (1.25 ips) line over camouflage core for the ultimate in stealth
  • Features all-new supple clear material for reduced memory
  • SA ID - SA STILLWATER CAMO WF X I (X = line weight)

Line weight Head length Total length Grain weight
WF4I 35.5' 105.0' 140
WF5I 37.5' 105.0' 160
WF6I 39.5' 105.0' 185
WF7I 41.5' 105.0' 210
WF8I 43.5' 105.0' 240
Sonar Stillwater

Sonar Stillwater Clear Midge Tip

For fishing flies in or near the surface film
  • Designed specifically for the demands of stillwater anglers
  • Based on our popular MPX Taper
  • Overweighted by a full line weight for multiple flies and long leaders
  • 5 foot clear intermediate tip (1.25 ips) with floating head and running line for fishing flies just below the surface
  • Features all-new supple clear material for reduced memory
  • SA ID - SA STLLWTR MIDGE TIP WF X FI (X = line weight)

Line weight Head length Total length Grain weight
WF6F/I 39.5' 105.0' 185
WF7F/I 41.5' 105.0' 210
WF8F/I 43.5' 105.0' 240
Sonar Uniform Sink

Sonar Seamless Density

Double-density sinking lines
  • Designed specifically for the demands of stillwater anglers
  • Based on our popular MPX Taper
  • Overweighted by two line weights for multiple flies and long leaders
  • Features 10-foot and 20-foot textured hang markers
  • Seamless-density technology provides a smooth transition between densities, eliminates hinging, and provides a straight-line connection to the fly
  • Sink rates:
    • Intermediate/Sink 3: designed to get under the surface chop, with an intermediate running line and Sink 3 (3 ips) head - AVAILABLE WF4S - WF8S
    • Sink 3/Sink 5: for earching the middle of the water column, with a Sink 3 running line and a Sink 5 (5 ips) head - AVAILABLE WF5S - WF8S
    • Sink 5/Sink 7: the fasterst sinking SD line, with a Sink 5 running line and a Sink 7 (7 ips) head, designed to dredge the bottom - AVAILABLE WF7S - WF8S
  • SA ID - SA STILLWATER SD WF X S# S# (X = line weight, # = sink rate)

Line weight Head length Total length Grain weight
WF4S 35.5' 105.0' 160
WF5S 35.5' 105.0' 185
WF6S 35.5' 105.0' 210
WF7S 35.5' 105.0' 240
WF8S 35.5' 105.0' 280
Sonar Uniform Sink

Sonar Parabolic Sink

Sinks in a U-shaped Profile
  • Designed specifically for the demands of stillwater anglers
  • Based on our popular MPX Taper
  • Overweighted by two line weights for multiple flies and long leaders
  • Features 10-foot and 20-foot textured hang markers
  • Seamless-density technology provides a smooth transition between densities and eliminates hinging
  • Sinking in a U-shaped profile, this line features a Sink 3 running line, Sink 5 head, and Sink 3 tip
  • SA ID - SA SD PRBLC WF X S# S# S# (X = line weight, # = sink rate)

Line weight Head length Total length Grain weight
WF6S 35.5' 105.0' 210
WF7S 35.5' 105.0' 240
WF8S 35.5' 105.0' 280
Sonar Custom Tip

Sonar Booby Tip

Floating tip for suspending flies off the bottom
  • 5' floating tip designed to be used with sinking lines to keep leaders and flies suspended off the bottom, away from debris or weeds
  • Looped on both ends for easy rigging
  • Especially effective with booby-style flies
  • SA ID - SA BOOBY TIP 5 FT 25 GR F

Total length Grain weight
5.0' 25
Sonar Saltwater Intermediate

Sonar Saltwater Intermediate

Slow-sinking fly line for saltwater

It’s not very often you’ll need to fish topwater flies in the salt. That’s where an intermediate line comes in handy. The SONAR Saltwater Intermediate fly line features a slow-sinking clear head that cuts through the surface and provides an amazing amount of stealth for those wary fish cruising the flats. From redfish and bonefish to permit and tarpon, give yourself an edge that fish won’t be able to see.

  • Slow sink rate gets flies just below the surface
  • Engineered for use in saltwater
  • Clear head for stealthy presentations
  • Built a half-size heavy for quick loading
  • Intermediate running line
  • Tropi-Core technology for tropical climates
  • Sink rate: 1.25 ips
  • SA ID - SA SONAR SWTI WF X I (X = line weight)

Line weight Head length Total length Grain weight
WF7I 38.0' 105.0' 200
WF8I 38.0' 105.0' 225
WF9I 38.0' 105.0' 260
WF10I 41.0' 105.0' 305
WF11I 41.0' 105.0' 355
WF12I 41.0' 105.0' 415
Sonar Custom Tip

Sonar Custom Tip

Custom-cut sinking fly line

Fly anglers are nothing if not inventive. From splicing together lines to weighing coils on a digital scale, finding the perfect sinking line can be a chore. The SONAR Custom Tip sinking fly line makes all of that much, much easier. This cut-to-fit fly line allows you to slice off as much line as you need to fit everything from a 7-weight through a 15-weight.

  • Cut-to-fit design lets you cut the tip to the ideal weight
  • Goes deep and stays deep
  • Intermediate running line
  • Sink rate: 7.75 ips
  • Braided multifilament core
  • Comes with braided add-on loop

Line weight Head length Total length Grain weight
Cut-to-fit 35.0' 105.0' 462

 

 

Sonar Tropical Custom Tip

Sonar Tropical Custom Tip

Custom-cut sinking fly line for tropical climates

Fly anglers are nothing if not inventive. From splicing together lines to weighing coils on a digital scale, finding the perfect sinking line can be a chore. The SONAR Tropical Custom Tip sinking fly line makes all of that much, much easier. This cut-to-fit fly line allows you to slice off as much line as you need to fit everything from a 7-weight through a 15-weight.

  • Cut-to-fit design lets you cut the tip to the ideal weight
  • Goes deep and stays deep
  • Intermediate running line
  • Sink rate: 7.75 ips
  • Tropi-Core technology for tropical climates
  • Comes with braided add-on loop

Line weight Head length Total length Grain weight
Cut-to-fit 35.0' 105.0' 462