Scientific Anglers Amplitude Smooth Trout GP Fly Line

New for 2026, the Scientific Anglers Amplitude Smooth Trout GP Fly Line- General Purpose Trout Taper. This line is one quarter size heavy and a fly casters dream. They call this "The Casters Fly Line". 

The Amplitude Smooth series of lines are, simply put, some of the highest-performance smooth fly lines in the world. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance.

* Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
* Mid-length head for exceptional mending and accuracy at distance
* The casters line
* Braided multifilament core
* Available in 3wt- 6wt
* Color is Butter/Sage/Willow

Features SA Line ID, AST + Coating, Improved Dry Tip, Welded Loops

SA Amplitude Smooth Trout GP 3wt WF-F
* 30' Head Weight: 105 grains
* Total Head Weight: 160 grains
* Head Length: 49.5 feet
* Total Length: 90 feet

SA Amplitude Smooth Trout GP 4wt WF-F
* 30' Head Weight: 125 grains
* Total Head Weight: 185 grains
* Head Length: 49.5 feet
* Total Length: 90 feet

SA Amplitude Smooth Trout GP 5wt WF-F
* 30' Head Weight: 145 grains
* Total Head Weight: 220 grains
* Head Length: 50.5 feet
* Total Length: 90 feet

SA Amplitude Smooth Trout GP 6wt WF-F
* 30' Head Weight: 170 grains
* Total Head Weight: 255 grains
* Head Length: 51 feet
* Total Length: 90 feet