It looks like you’re referring to the Nautilus X Series Extra Spool in Size XL Max (8/9), color Titanium, and listed as New. Here’s what you should know:

Nautilus X Series Extra Spool – Key Features:
– Compatibility: Designed for Nautilus X Series fly reels (check your specific reel model for compatibility).
– Size XL Max: Suitable for 8/9-weight fly lines.
– Material: High-grade machined aluminum (Titanium color finish).
– Drag System: Works seamlessly with the X Series’ sealed carbon drag system.
– Line Capacity: Holds a WF8F or WF9F fly line + backing (exact backing capacity depends on line thickness).

Nautilus X Series Extra Spool - Size XL Max - 8/9 - Color Titanium - New

– Condition: New (unused, in original packaging if applicable).

Where to Buy/Pricing:
– Retail Price: ~$100–$150 (varies by retailer).
– Check:
– Nautilus Fishing (official site)
– Fly shops (e.g., Orvis, Trident, Fly Fisherman)
– Marketplaces (eBay, Amazon, classifieds for new old stock).

Things to Verify:
1. Reel Compatibility – Ensure it fits your exact X Series model (e.g., NV, CCF-X2, etc.).
2. Included Accessories – Some spools come with pre-loaded backing or a case.
3. Seller Reputation – If buying secondhand, confirm authenticity.

Need help finding a seller or checking specs? Let me know!