A ANLEOLIFE 3-Pound Commercial Square .155-Inch-by-280-ft String Trimmer Line in Spool,with Built-in Line Cutter, Orange

What It Is

A pre-wound spool of heavy-duty .155-inch (4mm) commercial-grade square trimmer line, 280 feet total, with a built-in line cutter. Designed for high-volume trimming on tough weeds and thick grass—ideal for commercial landscapers or homeowners with large, overgrown properties.

Fitment & Compatibility

• Line diameter: .155-inch (4mm) – fits most gas trimmers that accept .155 or .160 line (check your trimmer’s manual for maximum line diameter; .155 is common in commercial models like Stihl FS, Echo SRM, Husqvarna 32x series).
• Spool size: 3-pound capacity – only fits trimmers with a large-capacity spool housing (typically commercial-grade machines). Measure your existing spool housing’s inner diameter (should be ~3.5–4 inches across) to confirm clearance.
• Brand/OEM: Aftermarket replacement. Not OEM for any brand, but fits most trimmers with a universal spool system (bump-feed or fixed-head). Not compatible with trimmer heads that require specific brand-locked spools (e.g., some Ryobi 40V or DeWalt 60V models).
• Pre-installed spool: Ready to drop in – no winding required. Check if your trimmer uses a “drop-in” spool or requires a separate hub/retainer.

Before buying: Measure your existing line diameter with calipers. Confirm your trimmer’s spool housing can accommodate a 3-pound spool (many residential trimmers use 0.5–1 lb spools). If your trimmer head has a built-in cutter, ignore the spool’s cutter.

Key Things to Know

• Quality: Square profile cuts better than round line—more edge contact for slicing through heavy weeds. .155 line is thick; expect shorter run time per spool (less line per spool due to thickness) but longer durability per line segment.
• Installation: Trivial—remove old spool, drop in new one, thread line through eyelet. The built-in cutter on the spool works for trimming line length, but some users find it less precise than a separate cutter.
• Common gotchas: The spool may be too large for some trimmers with compact housing (e.g., many battery-powered models). If your trimmer uses .095 or .110 line, this is overkill and may damage the head or motor. Check your trimmer’s max line diameter—using .155 in a .130 head voids warranty and risks head failure.
• Durability: Good for rocky or abrasive terrain—square line resists fraying better than round. However, it’s stiffer, so bump-feed action may be less smooth than with thinner or round line.

Should You Buy It

Buy this if you run a commercial-grade gas trimmer (Stihl, Echo, Husqvarna) with a large spool housing and need heavy-duty line for clearing thick weeds, brush, or roadside edges. Skip it if you have a residential battery or small gas trimmer—the line is too thick and the spool too big for most home machines.