Original Vortex Commercial Trimmer Line .155 3-Lbs. Medium Spool 250 Feet.

What It Is

This is a .155-inch diameter, 3-pound spool of commercial-grade trimmer line (250 feet total) from Original, designed for heavy-duty trimming on professional or high-end residential string trimmers. It’s a replacement line, not a complete spool assembly.

Fitment & Compatibility

• Diameter (.155"): Fits trimmers that accept line up to .155-inch. Check your trimmer’s manual or head for max line size; using thicker line can overload the head or engine.
• Brand/Model: Works with any trimmer (gas, electric, battery) that uses universal line, including Stihl, Echo, Husqvarna, Ryobi, and others. Not compatible with pre-wound spools—you load it yourself.
• OEM vs Aftermarket: This is an aftermarket line. It’s a direct replacement for OEM lines of the same diameter (e.g., Stihl 4000, Echo 3.0mm). No adapter needed.
• Measurements: 3 lbs = 250 feet. Verify your trimmer head capacity (most hold 15-25 feet per load). This spool will refill a typical head 10-15 times.
• What to check before buying: Confirm your trimmer’s max line diameter (look on the head or manual). If it’s a bump-feed head, ensure it’s compatible with .155 line (some heads jam with thicker line).

Key Things to Know

• Quality: “Vortex” shape (square/star cross-section) cuts cleaner and lasts longer than round line, especially on thick weeds or brush. Rated for commercial use.
• Installation: Moderate difficulty. You must cut and load line manually—no pre-wound spool. Follow your trimmer’s winding pattern (e.g., clockwise vs counterclockwise). Over-tight or uneven winding causes feed issues.
• Common gotchas: .155 is thick—check your trimmer’s RPM rating. Using it on a low-power electric trimmer can bog the motor. Also, the 3-lb spool is large; store in a dry place to prevent brittleness.
• Durability: Holds up well on gravel or concrete edges; less prone to shattering than cheap round line.

Should You Buy It

Buy this if you’re a pro or serious homeowner with a gas or high-power electric trimmer that handles .155 line, and you want long-lasting, aggressive cutting for thick weeds or brush. Skip it if you have a lightweight electric trimmer or prefer pre-wound spools for convenience.