RIO Mainstream Saltwater Fly Line



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RIO Mainstream Saltwater Fly Line
RIO Mainstream Saltwater Fly Line
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guaranteed for delivery
by Dec 24. details.

Guaranteed Holiday Delivery

Let our no-worries policy put your shopping stress at ease this holiday! Purchase eligible items and choose the appropriate shipping option at checkout. Your order's arrival on or by Monday, December 24 is guaranteed - or it's FREE! See details below.

Legal Terms & Conditions

  • For orders where delivery is not made or attempted by end of day on Monday, December 24, 2018, for the eligible item(s), we will credit your account in an amount equal to the purchase price of the item(s) in accordance with this offer
  • Please note, credits are not automatically applied to your account and must be requested
  • To request your credit, call Customer Service at 1-855-821-6911 starting Wednesday, December 26, 2018 thru 11:59 PM PT Thursday, January 3, 2019
  • Please note that this promotion may be terminated or modified at any time without notice
  • Delivery Methods are listed at checkout
  • All shipping costs are the responsibility of the customer
  • This program applies to:
    • Eligible items indicated with the "Guaranteed Holiday Delivery" tag
    • Guaranteed for Holiday delivery
    • Delivery Methods: Orders received and cleared credit authorization before 11:59 PM PT on Tuesday, December 18, 2018, for Standard Shipping, before 11:59 PM PT on Wednesday, December 19, 2018, for Expedited Shipping, or before 9:00 AM PT on Thursday, December 20, 2018, for Express Shipping
    • Orders shipped to a valid address in the contiguous United States
    • Attempted delivery on or before Monday, December 24, 2018, satisfies this offer
  • This program does NOT apply to:
    • Customized items, special orders, gift cards, items on backorder or cancelled orders (e.g., out-of-stock merchandise)
    • Shipments to Alaska, Hawaii and U.S. territories and possessions
    • Shipments to P.O. boxes or APO/FPO addresses
    • Orders where the required Delivery Method (as set forth above) was not selected at the time of checkout
    • Orders delayed by shipping carriers, acts of war, terrorism, acts of nature, or other events beyond our control
    • Previous purchases
  • For any questions, please contact Customer Service at 1-855-821-6911

Product Information:

RIO Mainstream Saltwater Fly Line has the perfect all-around performance the average angler needs. This specially designed fly line features a hard coating that’s formulated to keep the line from heating up in the sun, ensuring great performance cast after cast. RIO® Mainstream Saltwater Fly Line offers a slightly heavier design that makes loading easier and optimizes rod performance.


  • Developed for average and novice anglers
  • Optimizes rod performance with heavier, shorter head lengths
  • Resilient saltwater coating stays slick in the heat
  • Hard, durable coating resists softening from heat
  • Color: Blue
  • RIO


  • Model: 6-20761
  • Line Size: WF8F
  • Head Weight: 246
  • Head Length: 35 ft.
  • Total Length: 80 ft.
  • Sink Rate: Floating

  • Model: 6-20762
  • Line Size: WF9F
  • Head Weight: 330
  • Head Length: 35 ft.
  • Total Length: 80 ft.
  • Sink Rate: Floating

  • Model: 6-20763
  • Line Size: WF10F
  • Head Weight: 355
  • Head Length: 36 ft.
  • Total Length: 80 ft.
  • Sink Rate: Floating
  • Brand: RIO
  • Country of Origin: Imported