Scientific Anglers Sonar Leader 7'

Scientific Anglers Sonar Leader 7' polyleader is designed to help your fly reach the correct depth in the water. This leader is attached to the end of your fly line and allows you to fish your fly in the desired water layer.

Sonar Leader leaders feature welded loops at the back end and a micro swivel at the front end, which reduces line twist. They are available in five different densities, so you can choose the appropriate depth for your needs. The leader is suitable for both single-handed and light double-handed lines.

Scientific Anglers Sonar Leader 7' - Features:

• Floating and sinking leaders for single-handed and double-handed lines
• Welded loop at the butt end and micro swivel at the front end (floating model does not have a swivel)
• Made from 25 lb monofilament
• Equipped with markings to help identify weight and length

Sonar Leader leaders are an excellent choice when you want to control the depth of your fly and improve your fishing results.

Product text updated 18.12.2025.