MaxPower 338815 Premium Twisted Trimmer Line, .105-Inch Diameter x 165-Foot Length

What It Is

This is a .105-inch diameter twisted square trimmer line, sold in a 165-foot spool for gas, electric, and battery string trimmers. It’s designed for heavy-duty cutting of thick grass, weeds, and light brush, not for light-duty trimming around flower beds.

Fitment & Compatibility

• Check your trimmer’s line diameter spec – .105-inch is common for mid- to heavy-duty trimmers (e.g., Echo SRM-225, Husqvarna 128LD, Stihl FS 56 RC, Ryobi 40V expand-it models). Do not use in trimmers rated for .080-inch or smaller line (risks overload).
• Measure your trimmer head’s line capacity – 165 feet of .105 line takes up space. If your head holds only 15-20 feet per spool, you’ll have leftover line (fine, but you won’t use the whole spool in one load).
• OEM vs aftermarket – MaxPower is a universal aftermarket brand; no OEM-specific fitment issues. Works in bump-feed, fixed-line, and Speed-Feed heads. Avoid if your trimmer uses proprietary pre-cut line (e.g., some Ryobi 2-cycle models).
• Twisted vs round – Twisted line cuts faster and lasts longer than round line but is louder and more aggressive. Not ideal for edging or trimming near soft bark.

Key Things to Know

• Quality – Users report it’s durable and resists fraying better than cheap round line. Doesn’t snap easily on fences or rocks. Some find it slightly stiff in cold weather.
• Installation – Easy to load into any standard bump-feed head. The twisted profile can be harder to thread through small eyelets; use a knife to taper the end.
• Common gotcha – If your trimmer is under 30cc or 40V, this line may be too heavy and cause the engine/ motor to bog down. Check your manual for max line diameter.
• Wear pattern – Twisted line wears evenly and stays square, so you get consistent cutting until it’s too short to feed.

Should You Buy It

Buy this if you have a gas or high-power electric trimmer rated for .105-inch line and need to clear heavy weeds, blackberries, or overgrown grass without frequent line breakage. Skip it if you only do light lawn edging or have a small electric trimmer—you’ll be fighting the line’s weight and noise.