COVID-19 Update: The Fly Fishers storefront location in Brookfield is now open with the following temporary hours: Monday - Friday 11:00 AM - 4:30 PM, Saturday 10:00 AM - 2:00 PM, Sunday - Closed. We're still in the full time shop fulfilling online orders. Orders are being shipped as quickly as possible with brief delays - we are experiencing vendor availability issues and delays from all brands.

Thank you for your patience and continuing to shop with us - stay safe out there.

Free Shipping on orders of $25 or more For web orders Over $25

Scientific Anglers Sonar Custom Tip Fly Line

Scientific Anglers Sonar Custom Tip Fly Line for Sale Online
Have questions? Call us (414) 259-8100
Product Number:LINE-SACUST
Select Quantity
Need It Today? Pick up in store.
    Business Hours
  • Monday - Closed
  • Tuesday - 10:00AM - 6:00PM
  • Wednesday - 10:00AM -6:00PM
  • Thursday - 10:00AM - 6:00PM
  • Friday - 10:00AM - 6:00PM
  • Saturday - 9:00AM - 4:00PM
  • Sunday - Closed

This Sonar series line from Scientific Anglers was made for custom cutting the tip so you can match the line to your exact sink-tip needs. The sink-tip section sinks at 7.75 inches per second - it gets down where it needs to go and stays there. This custom tip line is capable of achieving 7 through 15wt rod sizes - a super sweet line for those looking to get precise. Check out the chart to help guide you to the right custom cut length.

  • Cut-to-fit design lets you cut the tip to the ideal weight for your fly rod
  • Goes deep and stays deep
  • Intermediate running line
  • Sink Rate: 7.75 ips
  • Braided multifilament core

GRAIN: 462/ CUT 0’ (10-15 WT)

GRAIN: 352/ CUT 8’ (9-11 WT)

GRAIN: 451/ CUT 1’ (10-13 WT)

GRAIN: 338/ CUT 9’ (8-11 WT)

GRAIN: 437/ CUT 2’ (10-13 WT)

GRAIN: 324/ CUT 10’ (8-11 WT)

GRAIN: 423/ CUT 3’ (10-13 WT)

GRAIN: 310/ CUT 11’ (8-9 WT)

GRAIN: 409/ CUT 4’ (9-12 WT)

GRAIN: 296/ CUT 12’ (8-9 WT)

GRAIN: 395/ CUT 5’ (9-12 WT)

GRAIN: 282/ CUT 13’ (8-9 WT)

GRAIN: 380/ CUT 6’ (9-11 WT)

GRAIN: 268/ CUT 14’ (7-9 WT)

GRAIN: 366/ CUT 7’ (9-11 WT)

GRAIN: 254/ CUT 15’ (7-8 WT)

Scientific Anglers Sonar Custom Tip Fly Line Features

Scientific Anglers Sonar Custom Tip Fly Line Feature: Sonar Sinking Technology

Sonar Sinking Technology

Scientific Anglers Sonar Custom Tip Fly Line Feature: Welded Loops

Welded Loops

Learn the details of Scientific Anglers fly line technology.




Cold Water TypeMedium Water TypeNymphsStreamers

CUT TO LENGTH 35.0’ / 10,7m 105.0’ / 32,0m 462gr / 29,9g
* Grain weight for the first 30′
Shop Scientific Anglers Sonar fly line available for sale online from The Fly Fishers fly shop.
Shop all fly fishing gear
Airflo StreamerMax Short Fly Fishing Line
Airflo Streamer Max Short Fly Line LINE-SMAX $94.99
Maxima Leader/Tippet Chameleon
Maxima Leader/Tippet Chameleon TIP-MAXC $4.29
RIO Saltwater Fluorocarbon Tippet Material
RIO Saltwater Fluoroflex Fluorocarbon Tippet Material RFSWT $12.99