A Anleolife 3-Pound Heavy Duty Sawtooth 140-mil-by-328-ft Dual Core String Serrated Trimmer Line Spool for Walk Behind Wheeled Mowers with Built-in Line Cutter

What It Is

This is a pre-wound spool of heavy-duty 0.140-inch serrated trimmer line designed specifically for walk-behind wheeled mowers with built-in line cutters. The dual-core construction and sawtooth edge are intended for cutting thick grass and light brush without swapping to a blade.

Fitment & Compatibility

Before buying, measure your mower deck’s trimmer head spindle diameter and ensure it matches the spool’s center hole (typically 1 inch or 1.5 inches). Check that your mower uses a “drop-in” spool design rather than a bump-feed or fixed-line head. This spool is aftermarket, so it won’t fit all OEM heads — confirm your mower brand and model (e.g., Husqvarna, Craftsman, MTD) against Anleolife’s compatibility list. The 0.140-inch line diameter is standard for most 21- to 30-inch walk-behind mowers; avoid using on smaller push mowers that require 0.080- or 0.095-inch line.

Key Things to Know

• Build quality: The serrated edge helps cut through tough weeds, but some users report the line can snap if it hits rocks or concrete at high speed. Dual-core construction adds durability but isn’t indestructible.
• Installation: This is a pre-wound spool — just drop it into the trimmer head and feed the line through the cutter. No winding required, but you must verify the spool’s directional rotation (clockwise vs. counterclockwise) matches your mower.
• Common gotchas: The built-in line cutter on your mower must be sharp and aligned; a dull cutter can cause the line to fray or jam. Also, this spool is heavier than standard (3 lbs), so it may affect mower balance on smaller decks.
• Line length: 328 feet total per spool, which is generous for multiple replacements, but the line is not individually replaceable — you must replace the entire spool when empty.

Should You Buy It

Buy this if you have a walk-behind mower with a compatible drop-in trimmer head and need a heavy-duty line for thick grass or overgrown areas, especially if you want a pre-wound spool for quick swaps. Skip it if your mower uses a bump-feed head, a smaller line diameter, or if you prefer replacing line individually to reduce waste.