4 Weight

Designed for huckin' junk. Its unique, thick tip and aggressive front taper turn over even the heaviest of rigs. And its long rear taper lets you ...

The Superflo Universal taper has quickly become the go to all-rounder fly line, performing flawlessly on every rod that anglers have put it on. Now...

Who says the proverbial jack of all trades is always a master of none? This line does it all - and beautifully so, at that. With a taper born from ...

The Elite RIO Perception is an easy casting, general purpose fly line that casts nymphs, dry flies, streamers and soft hackles with ease. The short...

Improved for 2020! The RIO Gold has been the go-to trout line around the world for many years, and for a multitude of fly fishers. The line has a l...

Designed for the modern, fast-action fly rod. Improved for 2020! The RIO Grand is a full line size heavier than the industry standard, and features...

RIO's Mainstream series of fly lines have been developed to meet the overall needs of the average and novice fly fisher, and are designed to optimi...

The first series of lines to feature the revolutionary AST PLUS slickness additive, the Amplitude will shoot farther and last longer than any other...

The first series of lines to feature the revolutionary AST PLUS slickness additive, the Amplitude series will shoot farther and last longer than an...

The first series of lines to feature the revolutionary AST PLUS slickness additive, the Amplitude series will shoot farther and last longer than an...

The Amplitude Smooth series of lines are, simply put, the highest-performance smooth fly lines in the world. With up to five times less drag and e...

Scientific Anglers brand new Amplitude Smooth Infinity fly line is a great general purpose freshwater line. Built a half of size heavy to quickly a...

The Amplitude Smooth series of lines are, simply put, the highest-performance smooth fly lines in the world. With up to five times less drag and ei...

For years, the gold standard in the Scientific Anglers lineup was the GPX taper. From tossing small dries to slinging huge streamers, the GPX could...

The SONAR Stillwater Seamless Density lines are a unique departure from the traditional graduated density lines of years past. With a variety of do...