A reliable twin‑feed spool that slides right into your Challenge N1F‑GT 240/250‑B trimmer, delivering smooth, uninterrupted cutting power. Each pack contains 2 × 3.5 m of premium 1.3 mm line, perfect for tackling grass, weeds and light brush without frequent reloads.
Why it works for you
- Dual‑feed design – feeds line from both sides of the spool, keeping the cutter tip full and reducing downtime.
- Exact fit – spool dimensions (48 mm W × 35 mm H × 21 mm ID) match the original Challenge specifications, so installation is a snap.
- Durable material – high‑quality nylon resists breakage and maintains consistent thickness for a clean cut every pass.
- Versatile use – ideal for residential lawns, garden edges, and small‑scale landscaping projects.
Installation tip
Simply remove the old spool, place the new one on the axle, thread the 1.3 mm line through the guide holes, and secure the cover. No tools required.
Designed for the Challenge N1F‑GT 240/250‑B series, this dual‑feed line spool gives you longer run time and smoother performance, letting you finish your yard work faster and with less hassle. Upgrade today and experience a cleaner, more efficient trim every season.





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