THTEN SF-080 String Trimmer Spool Line Compatible with Black and Decker SF-080-BKP 20ft 0.080" GH3000 LST540 GH3000R LST540B Weed Eater Auto Feed Single Line with 90583594 Cap Covers Parts

What It Is

This is a replacement spool pre-wound with 20 feet of 0.080-inch trimmer line, designed for automatic feed string trimmers. It’s a direct fit for specific Black+Decker and Weed Eater models, including the GH3000, LST540, and SF-080-BKP.

Fitment & Compatibility

Before buying, confirm your trimmer model matches one of these: Black+Decker SF-080-BKP, GH3000, GH3000R, LST540, LST540B, or Weed Eater models using the 90583594 cap and cover. This is an aftermarket part, not OEM Black+Decker. The spool uses 0.080-inch line—check your trimmer’s manual or existing spool for line diameter to avoid jamming or poor cutting. The cap and cover are included, so you don’t need to reuse old ones. If your trimmer uses a different line size (e.g., 0.065 or 0.095), this won’t fit.

Key Things to Know

• Quality: Line is slightly less durable than OEM—expect more frequent replacement if trimming thick weeds or along fences. Good for light to medium grass.
• Installation: Easy to install: remove old spool, align the new one, snap the cap on. No tools needed. The line feeds automatically, so no manual winding required.
• Gotcha: The included cap may feel slightly loose on some trimmers—check that it snaps securely before starting. If it pops off, it can damage the head.
• Length: 20 feet is standard for these models, but you get less line than some aftermarket spools (e.g., 25-30 ft). Fine for a small yard, but you’ll replace it more often.

Should You Buy It

This is a solid budget option if you own a compatible Black+Decker or Weed Eater trimmer and need a quick, no-fuss replacement. It’s not the toughest line for heavy-duty use, but for regular lawn maintenance at under $11, it’s reliable and easy to install. Skip it if you want OEM durability or have a different trimmer model.