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Scientific Anglers Sonar Seamless Density Sinking Fly Line

Our Price Promise

Sportfish is driven to provide you with the best value when you shop with us online or in our stores. If you see an identical product, including colour and size variations, advertised for less with another retailer in a current promotion and we have it in stock, we will match the price or refund you the difference. Read more here

Product Code
18A0061
£109.99
Specification

Seamless Density technology provides a smooth transition between densities, eliminates hinging and provides a straight line connection to the fly.
Available in three models

The Sonar Stillwater Seamless Density lines are a unique departure from the traditional graduated density lines of years past. With a variety of double-density sinking rates and a smooth, seamless transition between each, the Sonar Stillwater Seamless Density lines provide straightline connections to subsurface flies, meaning you’re in control of the fly every second it’s in the water.

  • Designed for modern fast actioned rods
  • Based on the popular Scientific Anglers GPX/MPX tapers
  • Convenient 20ft and 10ft textured hang markers
  • Welded loops at both front and rear
  • Sink 1/Sink 3: Designed to get under the surface chop, with an intermediate (1.25 ips) running line and Sink 3 head (3.0 ips)
    Colour : Light Green / Dark Green

  • Sink 3/Sink 5: For searching the middle of the water column, with a Sink 3 running line and a Sink 5 (5.0 ips) head
    Colour : Dark Green / Charcoal

  • Sink 5/Sink 7: The fastest sinking SD line, with a Sink 5 running line and Sink 7 (7.0 ips) head, designed to dredge the bottom
    Colour : Charcoal / Black

Buying Guides & Advice

A Guide to Choosing the Right Fly Fishing Line »
A Guide to Choosing a Fly Line for Single-Handed Rods »

Customer Reviews

Size/Variant Model Colour AFTM Sink Rate head length Length Price
WF4 Sink1/Sink3 Twin Colour #4 1.0 - 3.0 IPS 35ft/10.7m 32m/35yds 109.99
WF5 Sink1/Sink3 Twin Colour #5 1.0 - 3.0 IPS 35ft/10.7m 32m/35yds 109.99
WF6 Sink1/Sink3 Twin Colour #6 1.0 - 3.0 IPS 35ft/10.7m 32m/35yds 109.99
WF7 Sink1/Sink3 Twin Colour #7 1.0 - 3.0 IPS 35ft/10.7m 32m/35yds 109.99
WF5 Sink3/Sink5 Twin Colour #5 3.0 - 5.0 IPS 35ft/10.7m 32m/35yds 109.99
WF6 Sink3/Sink5 Twin Colour #6 3.0 - 5.0 IPS 35ft/10.7m 32m/35yds 109.99
WF7 Sink3/Sink5 Twin Colour #7 3.0 - 5.0 IPS 35ft/10.7m 32m/35yds 109.99
WF7 Sink5/Sink7 Twin Colour #7 5.0 - 7.0 IPS 35ft/10.7m 32m/35yds 109.99
WF8 Sink5/Sink7 Twin Colour #8 5.0 - 7.0 IPS 35ft/10.7m 32m/35yds 109.99
Delivery

ANY ORDER OVER £50 DELIVERED TO UK ADDRESS FREE*
Delivery to Republic of Ireland is FREE on orders over £150
Delivery to the EU & Channel Islands is FREE on orders over £399

For full details, pricing and delivery terms please view our delivery information and charges page.

When purchasing from Sportfish from outside of the UK, you will not pay UK VAT. Therefore it is the customers responsibility to check and settle their own customs charges when goods arrive.

Returns and Exchanges

We will gladly exchange or refund your unused purchase if you return it to us in a saleable condition and in its original undamaged packaging within 28 days of receipt. Your receipt or proof of purchase will be required.

For full details and terms please view our returns and exchanges policy.