Oregon .155" Square String Trimmer Replacement Line for DIY Yard Work or Gardening, Universal Fit, All-Purpose, 266 Foot Length, Green (69-479)

What It Is

This is a 0.155-inch diameter square-shaped trimmer line from Oregon, designed for gas, electric, and battery-powered string trimmers. It’s an all-purpose replacement line for general yard work and gardening, sold in a 266-foot spool.

Fitment & Compatibility

• Line diameter: 0.155 inches – fits most standard trimmer heads that accept line from 0.095 to 0.155 inches. Check your trimmer’s manual or head for max line diameter; using thicker line than recommended can overload the motor or damage the head.
• Square shape: works in any trimmer head that uses round or square line, but may cut slightly more aggressively than round line. Not ideal for heads designed exclusively for twisted or serrated line.
• Universal fit: no specific brand or model requirement – fits EGO, Ryobi, Stihl, Husqvarna, DeWalt, Craftsman, and most other trimmers. No deck size or OEM part number to match.
• What to check before buying: confirm your trimmer head’s line diameter limit (usually stamped on the head or in the manual). If your head uses pre-cut pieces (e.g., bump-feed with a specific length), you’ll need to cut this spool into appropriate lengths yourself.

Key Things to Know

• Quality: Oregon is a reputable aftermarket brand. This line is durable for light to medium-duty trimming (grass, weeds, light brush) but may wear faster than premium round line on heavy brush or against fences.
• Installation: easy – spool loads into most standard heads. Square shape may require a slight twist when winding to avoid jamming. No special tools needed.
• Common gotchas: the square profile can be noisier than round line on hard surfaces and may shed more material during initial use. Avoid using on high-power commercial trimmers with line diameters above 0.155 inches—can cause premature head wear or motor strain.
• Length: 266 feet is a good value for the price, enough for several refills on most residential trimmers.

Should You Buy It

Buy this if you have a standard residential trimmer (gas or electric) and want a reliable, all-purpose line for regular lawn maintenance. It’s a solid value for DIY users who don’t need heavy-duty commercial performance. Skip it if your trimmer requires 0.095-inch or smaller line, or if you regularly tackle thick brush or edging against hard surfaces.