RIO Mainstream Intermediate

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 optimize rod performance with slightly heavier and shorter head lengths. Every Mainstream line undergoes the same rigorous production processes and quality control standards as all RIO fly lines, and is made in RIO's Idaho manufacturing facility. Each line is built with a slick coating on a supple memory-free core, for the best in performance.

  • Slightly heavier than standard lines for easy loading
  • Supple core with a slick coldwater coating
SKULine SizeColorHead WeightHead LengthSink RateTotal Length
6-21213 WF4I Clear 165 37ft 11.2m 1.5-2 ips 80ft 24.4m
6-21214 WF5I Clear 185 38ft 11.5m 1.5-2 ips 80ft 24.4m
6-21215 WF6I Clear 230 39ft 11.8m 1.5-2 ips 80ft 24.4m
6-21216 WF7I Clear 280 40ft 12.1m 1.5-2 ips 80ft 24.4m
6-21217 WF8I Clear 315 41ft 12.5m 1.5-2 ips 80ft 24.4m
6-21218 WF9I Clear 365 41ft 12.5m 1.5-2 ips 80ft 24.4m