It sounds like you’re referring to the RIO WF9F Floating Saltwater Taper fly line with a multifilament core. Here’s a breakdown of its key features and maintenance tips after cleaning:

Key Features:
– Weight Forward (WF9F): Designed for easy casting at distance, ideal for saltwater applications.
– Floating (F): Stays on the surface, perfect for topwater flies (poppers, streamers).
– Saltwater-Tapered: Optimized for aggressive saltwater species (tarpon, permit, bonefish, etc.).
– Multifilament Core: Provides strength, durability, and smooth casting performance.

RIO WF9F FLOATING SALTWATER TAPER MULTIFILAMENT CORE FLY FISHING LINE -- CLEANED

– RIO’s Advanced Coating: Resists cracking and retains flexibility in harsh saltwater conditions.

Cleaning & Maintenance Tips:
1. Rinse After Use – Always rinse with freshwater after saltwater exposure to prevent corrosion and coating damage.
2. Use a Line Cleaner – Apply a fly line cleaner (like RIO’s AgentX or mild soap) to remove grime, salt, and algae.
3. Gentle Wipe Down – Use a soft cloth or sponge to clean the line without abrasion.
4. Dry Properly – Store loosely coiled in a cool, dry place to prevent memory coils.
5. Condition Occasionally – A silicone-based line dressing (if compatible) can restore slickness.

Why Cleaning Matters:
– Prolongs Lifespan – Prevents cracking and stiffness.
– Maintains Performance – Ensures smooth shooting and casting accuracy.
– Prevents Corrosion – Salt buildup can degrade the core over time.

Would you like recommendations for a cleaning kit or additional care steps?