Oregon 20-108 Platinum Gatorline Supertwist Trimmer Line .155-Inch by 100-Foot

What It Is

The Oregon 20-108 Platinum Gatorline Supertwist Trimmer Line is a heavy-duty, .155-inch diameter replacement line designed for gas and electric string trimmers. It’s built for tough vegetation—think thick weeds, brush, and overgrowth—not light grass trimming.

Fitment & Compatibility

Before buying, check your trimmer’s line diameter spec (most .155-inch lines fit gas trimmers and high-torque electric models). Measure your current line or consult the manual—this won’t fit trimmers that require .080, .095, or .105-inch line. It’s aftermarket, so it works with any trimmer brand (e.g., EGO, Stihl, Husqvarna) that accepts .155-inch line, but verify spool compatibility: some “speed-feed” or “bump-feed” heads may need manual winding. For EGO models specifically (like the Power+ line), this fits if your trimmer head accepts a single .155-inch strand—most EGO heads do, but check the string hole size. Not for electric trimmers with low torque (e.g., small corded units) as the line may stall the motor.

Key Things to Know

• Quality: Supertwist design gives extra durability and cutting power vs. standard round line—less fraying and breakage on thick brush.
• Installation: Easy to load by hand or with a spool winder; the line is stiff, so it holds shape well but can be tricky to thread on some heads without winding tool.
• Common gotcha: At .155-inch, this line is heavy—it may cause vibration or reduced runtime on lighter-torque trimmers. Test on a small patch first.
• Length: 100-foot roll gives multiple refills; cut to your spool’s capacity (typically 20-30 feet per load).

Should You Buy It

Buy this if you have a gas or high-torque electric trimmer that uses .155-inch line and you regularly clear tough weeds, brambles, or fence lines. Skip it for light lawn maintenance or low-power trimmers—you’ll get better performance from a thinner, lighter line.