Weed Eater String .080", 344ft Heavy Duty String Trimmer Line, Square Shape 1LB, Premium Nylon Weed Wacker String, Universal Fit for Grass Trimmers & Edgers

What It Is

This is a 0.080-inch diameter, 344-foot spool of square-shaped, heavy-duty nylon trimmer line designed for gas, electric, and battery-powered string trimmers and edgers. The square profile provides better cutting edge vs. round line, and the 1 lb. spool is meant for bulk replacement—not a pre-wound spool for drop-in loading.

Fitment & Compatibility

Before buying, confirm your trimmer’s line diameter spec (usually printed on the head or in the manual). This 0.080" line fits most trimmers that accept 0.065"–0.095" line, but it’s not for heads that only take smaller diameters (e.g., 0.065" only). Check the head type: if you have a bump-feed or fixed-line head, you can wind this bulk line yourself. If your trimmer uses pre-cut, pre-wound spools (common on many cordless models), this won’t work—you need the exact spool replacement. Also verify the spool size: 344 ft. is a large bulk spool; make sure your trimmer head can hold enough line (most hold 10–20 ft. per load).

Key Things to Know

• Square shape cuts better but wears faster – The sharp edges slice through thick grass/weeds more aggressively than round line, but they dull quicker, requiring more frequent line advancement.
• Manual winding required – You must cut and wind the line onto your trimmer’s spool yourself. No pre-wound spool included. Watch a video if you’re new to this—wrong winding direction or too much line can cause feeding issues.
• Heavy-duty, not for light trimmers – This is a thicker, stiffer line. It may cause excessive vibration or overwork small electric/battery trimmers under 20V. Best for gas trimmers or high-torque corded models.
• Check for jamming – Some trimmer heads (especially bump-feed types) can jam with square line if the line is too thick for the head’s exit slots. Test with a short piece first.

Should You Buy It

Buy this if you own a gas or high-power corded trimmer that uses 0.080" line, you don’t mind winding your own spools, and you want a more aggressive cut for heavy weeds or edging. Skip it if you have a small electric trimmer, a pre-wound spool-only head, or prefer a round line that lasts longer before dulling.