Oregon Gatorline Square Weed Wacker/String Trimmer Line, .155 in. by 84 FT

What It Is

This is a .155-inch diameter, 84-foot spool of Oregon Gatorline square trimmer line designed for use with EGO battery-powered string trimmers. It’s a replacement line for cutting grass and light weeds, suitable for residential trimming tasks.

Fitment & Compatibility

Before buying, confirm your EGO trimmer uses .155-inch line (common for EGO models like the ST1500, ST1510T, and ST1520S). This is an aftermarket line, not OEM, but fits any trimmer head that accepts a single .155-inch line. Check your trimmer’s manual or existing line size—using a thicker or thinner line can cause poor feeding or damage. The 84-foot length is enough for multiple reloads on most EGO string trimmers.

Key Things to Know

• Quality: Oregon Gatorline is known for durability; the square shape provides better cutting edge than round line, reducing fraying and breaking on fences or sidewalks.
• Installation Difficulty: Easy to load into bump-feed heads—no tools required. Follow your trimmer’s manual for winding direction (usually clockwise).
• Common Gotchas: .155-inch line is slightly thinner than some OEM EGO line (often .095–.155 inch). If your trimmer head is designed for .095-inch, this may not feed properly. Also, avoid using on gas trimmers with larger cutting heads, as it may wear faster.
• Performance: Best for light to medium trimming—struggles with thick weeds or brush. Wet grass can cause more binding.

Should You Buy It

Buy this if you need a reliable, affordable replacement line for your EGO battery trimmer for regular lawn maintenance and don’t mind a slightly thinner line than some OEM options. It’s a solid value for the price, but skip it if you trim heavy weeds or need a thicker, more aggressive line.