Oregon 22-505 Magnum Gatorline Round Trimmer Line .105-Inch by 1194-Foot

What It Is

The Oregon 22-505 Magnum Gatorline is a bulk spool of .105-inch diameter round trimmer line designed for heavy-duty trimming in commercial or large residential properties. It’s intended for use with string trimmers that accept .105-inch line, including EGO Power+ models, and is best for cutting thick weeds, briars, and light brush.

Fitment & Compatibility

Before buying, confirm your trimmer’s line diameter requirement—this is .105-inch (2.7mm), not the more common .080 or .095 sizes. Check your trimmer’s manual or the inside of the spool housing for a stamped diameter number. This line works with EGO string trimmers (e.g., ST1500, ST1511T, ST1623T) and any brand that accepts .105-inch line, but it may not fit EGO’s rapid-load or bump-feed heads designed for smaller line. Measure your existing spool’s inner hub diameter to ensure the 1194-foot spool will load properly—some compact heads can’t hold that much line. This is an aftermarket replacement, not OEM EGO, so verify compatibility with your trimmer head’s mechanism (manual feed vs. bump feed).

Key Things to Know

• Quality & durability: The Gatorline has a twisted, star-shaped profile that cuts faster than standard round line, but it’s stiffer and may wear down trimmer head components faster on high-speed electric models like EGO.
• Installation difficulty: Loading a 1194-foot spool onto a standard trimmer head can be tedious—you’ll need to pre-cut lengths to avoid tangling. It’s easier if you have a line winder tool or a head that accepts pre-cut pieces.
• Common gotcha: The .105-inch diameter is thick for electric trimmers; it can reduce runtime on battery-powered EGO models because the motor works harder to spin the heavier line.
• Storage: The bulk spool is large (about 10 inches wide); ensure you have space to store it without the line uncoiling or kinking.

Should You Buy It

Buy this if you have a commercial or heavy-use residential trimmer that accepts .105-inch line, especially for tackling dense weeds or brush, and you don’t mind the extra effort of loading bulk line. Skip it if you use a light-duty electric trimmer, prefer bump-feed convenience, or want a smaller spool for occasional use—the size and stiffness will likely cause more hassle than benefit.