Scientific Anglers Sonar Leaders 7ft
Imagine a world where you need to get a fly down to the fish, but all you have is a floating fly line. In that world, the perfect solution would be our SONAR Sinking Leaders. Luckily for you, we live in such a world. These leaders attach to the end of a fly line and can put your fly anywhere in the water column. Sonar leaders feature welded loops on the rear end and a micro-swivel on the front end to reduce line twist. With five different densities you’ll be able to cover the surface to the depths. Ideal for single-handed lines as well as light double-handed lines, no matter the scenario, you can Get Down with SONAR.
- Floating and sinking leaders for use with double and single-handed lines
Specifications
| Feature | Detail |
|---|---|
| Length | 7ft |
| End Type | Welded loop (rear), micro-swivel (front) |
| Use | Single-handed and light double-handed lines |
| Density Options | Five different densities |
FAQ
What are the different densities of the Sonar Leaders used for?
The five different densities allow anglers to adjust the sink rate of the leader, enabling it to reach various depths in the water column, from surface to deeper zones.
Can the Sonar Leaders be used with both floating and sinking fly lines?
Yes, the Sonar Leaders are designed to work with both floating and sinking fly lines, providing flexibility in different fishing conditions.
Does the leader reduce line twist during use?
Yes, the micro-swivel on the front end helps reduce line twist, improving casting performance and line control.

Ruth Pullman –
The Sonar Leader works great with my single-handed setup. It keeps the fly down where the fish are, even in deep water. The micro-swivel makes casting smoother and the welded loop is secure. I’ve used it in multiple conditions and it’s reliable.
Bella Clark –
I switched from traditional sinking lines to this Sonar Leader and noticed a big difference in how deep my fly goes. The five density options let me adjust for different water depths. A little heavier than expected, but worth it.
Tracey Dickens –
Perfect for light double-handed fishing. The leader stays in place and doesn’t twist. I’ve used it in streams and lakes and it performs consistently. Easy to attach and detach from the fly line.