NEW TACKLE & CLOTHING      Discover what's new in stock this spring - BROWSE NOW »

 FREE FLY FORTNIGHT    Buy any 5 flies and get the cheapest FREE, offer expires midnight 26th November - SHOP NOW »

  WINTER SALE NOW ON     Over 50% off selected clothing, tackle & accessories - SHOP NOW »

  WIN A HARDY SOVEREIGN REEL     It's your chance to WIN this Hardy reel worth over £499 - ENTER NOW »


Scientific Anglers Mastery MPX Floating Fly Line

Product Code

Redesigned with more mass toward the front of the head, this MPX fly line is excellent with dry flies, nymphs, and streamers and for use in moderate and cold climates.

Colour: Buckskin/Optic Green

Sizes Available: WF4F - WF8F

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 do it all.

Built a half-size heavy, the MPX taper starts where the GPX left off. Redesigned with more mass toward the front of the head, the MPX provides the same benefits of the GPX, with an added emphasis on presentation. The power is still there, only with an added bit of finesse. Meet your new best friend and the best all-around fly line we’ve ever made.

  • The ultimate general presentation taper
  • Improved version of our GPX taper
  • Built a half-size heavy to load rods and turn over large flies easily
  • Excellent with dry flies, nymphs, and streamers
  • Features the ST+ slickness additive
  • For use in moderate and cold climates
  • Braided multifilament core
  • Colour : Buckskin/Optic Green
  • Sizes Available : WF4F -  WF8F

Customer Reviews

Size/Variant Colour AFTM head length Length Price
WF4 Twin Colour #4 9.9m/10.82yds 27.5m/30yds 79.99
WF5 Twin Colour #5 10.9m/11.92yds 27.5m/30yds 79.99
WF6 Twin Colour #6 11m/12.02yds 27.5m/30yds 79.99
WF7 Twin Colour #7 12.1m/13.12yds 27.5m/30yds 79.99
WF8 Twin Colour #8 12.5m/13.67yds 27.5m/30yds 79.99
  • FREE fast 1-3 day delivery to mainland UK* on ALL orders
  • Upgrade to next working day available for £4.99 (order before 3pm)
  • Premium Delivery to Highlands and Islands, Isle of Man and Northern Ireland is FREE* on ALL orders
  • Delivery to Republic of Ireland is FREE on orders over £150
  • Delivery to the EU & Channel Islands is FREE on orders over £399

For full details, pricing and delivery terms please view our delivery information and charges page.

When purchasing from Farlows from outside of the UK, you will not pay UK VAT. Therefore it is the customers responsibility to check and settle their own customs charges when goods arrive. If you are purchasing from a non-UK country and you choose to not accept a delivery because of the additional importation costs levied by the authorities in your country then we reserve the right to deduct any shipping or postage costs incurred by us from the refund to you.

Returns and Exchanges

Unused or unwanted purchases can be returned for refund within 28 days of receipt. 

Purchases can be returned for exchange within 28 days of receipt. 

For full details and terms please view our returns and exchanges policy.