GH3000 Trimmer Replacement Spools Compatible with Black and Decker SF-080 LST540 Weed Eater, 20ft 0.080 inch GH3000R LST540B LST540 Edger Refills Parts, SF O80 Auto-Feed Single Line Cord (10 Pack)

What It Is

This 10-pack of GH3000 replacement spools is pre-wound with 20 feet of 0.080-inch single-line trimmer cord, designed for automatic feed systems in Black+Decker and Weed Eater electric trimmers and edgers.

Fitment & Compatibility

• Models confirmed fit: Black+Decker SF-080, LST540, LST540B, GH3000, GH3000R, and Weed Eater LST540. Also fits edger models using GH3000R-style refills.
• Check your trimmer head: Requires a spool-retaining cap or knob that accepts a single-line, auto-feed spool with a center hub (not bump-feed or dual-line). If your trimmer uses a different spool shape (e.g., GH600, AF-100), this won’t fit.
• Line diameter: 0.080 inch – verify your trimmer head accepts this thickness. Thicker line may jam or overload the motor on lightweight electric trimmers.
• OEM vs aftermarket: GH3000 is a third-party brand. It’s not made by Black+Decker, but it’s designed to match OEM GH3000R specs. Expect slightly looser tolerances than factory spools.

Key Things to Know

• Installation is tool-free – just push the spool into the head, thread the line through the eyelet, and snap the cap on. No disassembly needed.
• Auto-feed works reliably on most models, but some users report occasional over-spooling (line releases too much). If that happens, trim the exposed line to 4–5 inches.
• Line quality is adequate for light-duty trimming (grass, small weeds). It’s not suitable for heavy brush or thick vines – expect frequent breakage in tough conditions.
• 10-pack value is strong if you trim frequently (roughly $1.43 per spool vs $3–5 for OEM). Spools are pre-wound, so no winding hassle.

Should You Buy It

Buy this if you have a compatible Black+Decker or Weed Eater electric trimmer/edger, want a cost-effective bulk supply for light residential trimming, and don’t mind occasional line-feed tweaks. Skip it if you need heavy-duty line for thick vegetation or prefer OEM consistency.