Weed Eater String, Commercial Square Twist .105" Diameter x 302' String Trimmer Line in Spool,Premium Nylon Universal Replacement Weed Wacker String, Orange

What It Is

A .105-inch thick, 302-foot continuous spool of square-twist commercial-grade nylon trimmer line, designed for heavy-duty weed whacking on large properties or professional landscaping jobs.

Fitment & Compatibility

Before buying, confirm your trimmer head accepts .105-inch (2.7mm) diameter line – this is thicker than standard homeowner line and may not fit trimmer heads with narrow line slots or those designed for .080-inch or .095-inch max. Check your trimmer manual or the head’s line capacity markings. This spool is universal – no brand-specific locking mechanism – so it works with most bump-feed, fixed-line, or manual-feed heads that can handle .105-inch line. Not compatible with electric trimmers that require pre-wound spools (e.g., many Ryobi, Greenworks, or Black+Decker models). For gas trimmers (Echo, Stihl, Husqvarna, etc.), it’s compatible as long as the head accepts this diameter.

Key Things to Know

• Square twist design cuts more aggressively than round line and lasts longer, but is slightly louder and can scuff painted surfaces or soft wood.
• Installation is manual – you wind the spool yourself, which takes 5–10 minutes. No pre-wound spool included; just the line.
• 302 feet is a bulk quantity – enough for 6–10 standard refills, depending on head size. Ideal if you trim multiple mowers or frequently replace line.
• Not for light-duty use – the .105-inch thickness can bog down underpowered electric trimmers; best paired with 30cc+ gas or high-torque battery trimmers.

Should You Buy It

Buy this if you run a commercial or heavy-use gas trimmer, want to cut down on frequent line replacements, and prefer the durability and cutting power of square-twist line. Skip it if you have a lightweight electric trimmer or a head that only takes .080-inch or .095-inch line – you’ll struggle with fitment and performance.