Billfish Intermediate

$62.97 USD Save

The Tropic Plus Billfish line features a 9ft clear intermediate tip to allow the use of shorter leaders without spooking fish.

- Tropic Plus Coating
- Heavy Monofilament Core
- 9ft Clear Intermediate Tip

WATER: Saltwater
LINE: Intermediate / Floating
TAPER: Weight Forward
LENGTH: 65ft
CORE: Monofilament
SPECIES: Billfish / Sailfish / Marlin

Size WF 13

United States deliveries usually take 3-8 business days.

International deliveries can take up to 7 - 18 days.

If you have any question about shipping Contact Us our customer service department is here to help.

 P65 - WARNING: Cancer and Reproductive Harm

Saltwater Intermediate / Floating Weight Forward Monofilament

WF 13 430 gr. 43 ft. 65 ft.
WF 14 480 gr. 43 ft. 65 ft.
WF 15 530 gr. 43 ft. 65 ft.

Billfish Intermediate Breakdown

Getting a Billfish to the boat on a fly is no easy task. Our Billfish Intermediate was designed to deliver large flies into the upper water column of the prop wash quickly.

This line features a 9 ft. clear intermediate front taper for stealth and presentation, a 27 ft. extended body that will transfer energy quickly and efficiently for those quick casts when there is a Billfish on the teaser and you need to deliver your fly. A short 7 ft. back taper helps with quick loading, and fast shooting.

This line is built on a heavy monofilament core with our signature tropic plus coating finished in a very traceable chartreuse color.

SPECIES: Billfish / Sailfish / Marlin


Welded loops make rigging fast, easy and reliable. Cortland loops are strong, secure and durable.


ST coating delivers a reduced-friction performance with a glass-smooth finish and remains a key element in line slickness over its life span.


The perfect blend of advanced polymers to achieve a hard, durable surface that remains slick in extreme heat.


Ideal use in 50 - 70 degree (F) temperatures


Ideal use in 70 + degree (F) temperatures

Our Tropic Billfish Intermediate Line is built for tropic environments and will perform best in temperatures above 70 degrees (F). Our Tropic PVC coating is designed to remain hard, slick and supple in the hottest conditions.

The taper design for our Tropic Plus Billfish Intermediate line was built to excel in both short and long range casting. The extended body and short rear taper allows for more energy to be transferred into your cast. The clear front taper turns over a variety of flies while remaining stealthy in the prop wash. This line is built in a 13-15 wt. to load powerful, offshore fly rods.

The clear and chartreuse finish is stealthy yet traceable in the prop wash.

Cleaning your fly line is very important especially when fishing saltwater. Simply pull line off your reel into a clean bucket or tub of freshwater. Put roughly 1oz or more of Cortland’s Line Cleaner solution onto a clean rag or towel. Firmly squeeze the towel with Pro Line Cleaner around the line and slowly pull line through the towel. You should be able to see dirt or discolored streaks on the towel when finished.

Learn more about Cortland's Fly Line Cleaner Lubricant & Pads.

Hover: Neutral
Slow Intermediate: 1 IPS (Inches Per Second) 
Medium Intermediate: 1.5 - 2 IPS (Inches Per Second)
Fast Intermediate: 2 - 3 IPS (Inches Per Second)
Type 3 Sink Rate: 3 - 4 IPS (Inches Per Second)
Type 4 Sink Rate: 4 - 5 IPS (Inches Per Second)
Type 5 Sink Rate: 5 - 6 IPS (Inches Per Second)
Type 6 Sink Rate: 6 - 7 IPS (Inches Per Second)
Type 7 Sink Rate: 7 - 8 IPS (Inches Per Second)
Type 9 Sink Rate: 9+ IPS (Inches Per Second)