Scientific Anglers Fly Lines: Frequency Series
Frequency Value-priced Smooth Fly Lines
We are proud to offer the Frequency family of lines: the Trout and Double Tapers, built for precise
presentations; the Boost, a half-size heavy taper for handling bigger dries, nymphs, and streamers; the Magnum, an even more powerful line for the largest streamers and poppers; the Saltwater, for fish along the coastlines; along with Sink-Tip, Full Sink, and Intermediate lines for all your sub-surface needs.
Five floating tapers. Three sinking tapers. Limitless possibilities.
Frequency Trout GP


Finesse meets versatility. Trout GP adds slightly longer front and rear tapers with a ¼ size heavier weight, making it ideal for anglers who prefer lighter rigs. Perfect for general-purpose trout fishing without sacrificing performance.
Features:
- Utilizing the tapered belly from Infinity, Trout GP has a slightly longer front and rear taper and ¼ size heavy weight scheme. Compared to Infinity, Trout GP leans more finesse but is still a capable general purpose trout line.
- The choice for anglers who don’t consistently fish heavy rigs like large streamers or bulky indicators.
- Braided multifilament core
Colour: Sage
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 49.5′ | 85.0′ | 105 |
| WF4F | 49.5′ | 85.0′ | 125 |
| WF5F | 50.5′ | 85.0′ | 145 |
| WF6F | 51.0′ | 85.0′ | 170 |
| WF7F | 52.0′ | 85.0′ | 195 |
| WF8F | 53.0′ | 85.0′ | 220 |
Frequency Trout

Here’s an idea: instead of spending $200 on a trout line, pick up a Frequency Trout fly line and use the rest on your next drive-all-night road trip. The Trout taper features a versatile, mid-length head ideal for delicate dries; however, it also provides great line control for nymph rigs. If you’re a trout angler, this is your Frequency.
Features:
- For use in cold to moderate climates
- All-around trout fly line
- Versatile taper excels with most flies and conditions
- Excels in all weather conditions
- Mid-length head
- Formulated with Advanced Shooting Technology
- Braided multifilament core
Colour: Orange (WF3F-WF6F) or Buckskin (WF3F-WF8F)
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 32.0′ | 85.0′ | 100 |
| WF4F | 34.0′ | 85.0′ | 120 |
| WF5F | 34.0′ | 85.0′ | 140 |
| WF6F | 36.0′ | 85.0′ | 160 |
| WF7F | 36.0′ | 85.0′ | 185 |
| WF8F | 38.0′ | 85.0′ | 210 |
![]()
Frequency Double Taper


Here’s an idea: instead of spending $200 on a trout line, pick up a Frequency Double Taper fly line and use the rest on your next drive-all-night road trip. The Double Taper features subtle front and rear tapers ideal for delicate dries and makes mending at any distance a breeze. If you’re a trout angler, this is your Frequency.
Features:
- For use in cold to moderate climates
- All-around trout fly line
- Versatile taper excels with most flies and conditions
- Excels in all weather conditions
- Mid-length head
- Formulated with Advanced Shooting Technology
- Braided multifilament core
Colour: Mist Green
| Line weight | Total length | Grain weight |
|---|---|---|
| WF3F | 85.0′ | 100 |
| WF4F | 85.0′ | 120 |
| WF5F | 85.0′ | 140 |
| WF6F | 85.0′ | 160 |
![]()
Frequency MPX


Here’s an idea: instead of spending $200 on a trout line, pick up a Frequency Trout fly line and use the rest on your next drive-all-night road trip. The Trout taper features a versatile, mid-length head ideal for delicate dries; however, it also provides great line control for nymph rigs. If you’re a trout angler, this is your Frequency.
Features:
- All-around trout fly line
- Versatile taper excels with most flies and conditions
- Excels in all weather conditions
- Mid-length head
- Formulated with Advanced Shooting Technology
- Braided multifilament core
Colour: Moss (shown) or Orange
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 32.0′ | 85.0′ | 110 |
| WF4F | 34.0′ | 85.0′ | 130 |
| WF5F | 36.0′ | 85.0′ | 150 |
| WF6F | 38.0′ | 85.0′ | 175 |
| WF7F | 40.0′ | 85.0′ | 200 |
| WF8F | 42.0′ | 85.0′ | 225 |
![]()
Frequency Boost


Let’s be honest. No one will ever turn down a little extra help with their cast. Luckily, the Frequency Boost, built a half-size heavy, provides just that. This general purpose floating fly line loads quickly, turns over large dries, nymph rigs, and streamers with ease, and features a mid-length head perfect for nearly all freshwater applications.
Features:
- For use in cold to moderate climates
- Excellent general-purpose line
- Half-size heavy and more powerful than the Trout taper
- Better with larger, heavier flies
- Supple and easy to use
- Versatile mid-length head
- Braided multifilament core
Colour: Willow
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 32.0′ | 85.0′ | 110 |
| WF4F | 36.0′ | 85.0′ | 130 |
| WF5F | 36.0′ | 85.0′ | 150 |
| WF6F | 36.0′ | 85.0′ | 175 |
| WF7F | 40.0′ | 85.0′ | 200 |
| WF8F | 40.0′ | 85.0′ | 225 |
![]()
Frequency Magnum


The Frequency Magnum summed up in six words: big flies, big fish, small price. Designed with an aggressive weight-forward head, the Magnum fly line is built for tossing large flies, turning over split shot, and blasting through the wind. In other words, this line is a bit of a bully – which is great if you’re targeting bass, big trout, and light saltwater game. It’s nice to have some muscle on your side.
Features:
- For use in cold to moderate climates
- Turns over large dries, streamers, and split shot with ease
- For use in both fresh- and saltwater environments
- Overweighted design loads fast-action rods
- Braided multifilament core
Colour: Optic Green
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5F | 35.0′ | 85.0′ | 150 |
| WF6F | 37.0′ | 85.0′ | 175 |
| WF7F | 39.0′ | 85.0′ | 200 |
| WF8F | 41.0′ | 85.0′ | 225 |
| WF9F | 43.0′ | 85.0′ | 260 |
![]()
Frequency Magnum Glow


The Frequency Magnum summed up in six words: big flies, big fish, small price. Designed with an aggressive weight-forward head, the Magnum fly line is built for tossing large flies, turning over split shot, and blasting through the wind. In other words, this line is a bit of a bully – which is great if you’re targeting bass, big trout, and light saltwater game. It’s nice to have some muscle on your side.
Features:
- For use in cold to moderate climates
- Turns over large dries, streamers, and split shot with ease
- For use in both fresh- and saltwater environments
- Overweighted design loads fast-action rods
- Braided multifilament core
- For best glow results use a UV light to charge.
Colour: Glow (night) – Ivory (day)
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5F | 35.0′ | 85.0′ | 150 |
| WF6F | 37.0′ | 85.0′ | 175 |
| WF7F | 39.0′ | 85.0′ | 200 |
| WF8F | 41.0′ | 85.0′ | 225 |
![]()
Frequency Saltwater


Here’s the deal: it’s still possible to get a heckuva fly line for less than 200 bucks. The Frequency Saltwater is a great all-around compound saltwater taper designed to load rods quickly and cut through the wind. What’s your frequency?
Features:
- For use in cold to moderate climates
- Overweighted to assist in punching through the wind and turning over large flies
- Floating compound taper ideal for fish both on and off the flats
- Built for use in a wide variety of weather conditions
- Mid-length head
- Braided multifilament core (7-10 wt.)
Colour: Light Blue
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF7F | 40.0′ | 90.0′ | 200 |
| WF8F | 40.0′ | 90.0′ | 225 |
| WF9F | 40.0′ | 90.0′ | 260 |
| WF10F | 35.0′ | 90.0′ | 305 |
![]()
Frequency Sink Tip


In moving water, getting flies below the surface while maintaining control can present a challenge. That’s why sink tip fly lines were introduced. We took this idea, put it at an affordable price point, and came up with the Frequency Sink Tip. Featuring a Type III 10′ sinking tip, the Frequency Sink Tip is great for streamer fishing from a boat, while wading, or just about anywhere – mall water fountains excluded.
Features:
- For use in cold to moderate climates
- Ideal for streamers and wet flies for trout, steelhead, salmon, and smallmouth bass in moving water
- Fast-sinking 10’ tip sinks flies through the water column
- Mid-length head enhances control
- Best used in moving water
- Sink Rates: 2.5 – 4.0 ips (Type III)
- Braided multifilament core
Colour: Optic Yellow/Green
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5F/S | 45.0′ | 85.0′ | 140 |
| WF6F/S | 45.0′ | 85.0′ | 160 |
| WF7F/S | 45.0′ | 85.0′ | 185 |
| WF8F/S | 45.0′ | 85.0′ | 210 |
![]()
Frequency Intermediate

There are times where you need to get your fly underwater, but not too far under the surface. That’s when you need the Frequency Intermediate fly line. Built with a slow sink rate, the Frequency Intermediate will pull streamers and wet flies under surface chop to get them where the fish are. Perfect for stillwater situations, and good for chucking streamers in rivers as well, at this price, it would be silly not to get one.
Features:
- For use in cold to moderate climates
- Especially effective for fishing streamers
- Thin diameter cuts through wind
- Ideal for use in stillwater situations
- Mid-length head for enhanced line control
- Sink Rate: 1.25 ips (Intermediate)
- Braided multifilament core
Colour: Atmosphere
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5I | 34.0′ | 85.0′ | 140 |
| WF6I | 36.0′ | 85.0′ | 160 |
| WF7I | 36.0′ | 85.0′ | 185 |
| WF8I | 38.0′ | 85.0′ | 210 |
![]()
Frequency Full Sink


If there’s a better way to fish lakes and ponds than with a full-sinking line, we haven’t found it. The Frequency Full Sink is the perfect sinking fly line for stillwater anglers; it handles streamers and wet flies with aplomb, cuts through the wind, and features a mid-length head for great line control. We built the Frequency Full Sink with two sink rates and the idea that great subsurface lines don’t have to cost a fortune.
Features:
- For use in cold to moderate climates
- Especially effective for fishing streamers
- Thin diameter cuts through wind
- Ideal for use in stillwater situations
- Front welded loop on Sink 3; Sink 6 includes braided loop connection
- Mid-length head for enhanced line control
- Sink rates available:
- Sink 3: 2.5–4 inches per second
- Sink 6: 5–6 inches per second
- Braided multifilament core
Colours: Dark Green (Sink 3) or Dark Gray (Sink 6 – shown)
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF5S | 34.0′ | 85.0′ | 140 |
| WF6S | 36.0′ | 85.0′ | 160 |
| WF7S | 36.0′ | 85.0′ | 185 |
| WF8S | 38.0′ | 85.0′ | 210 |
![]()




