Oregon 0.080 in. Gatorline Round Weed Wacker/String Trimmer Line, 1 lb. (416 ft.) Bulk Donut, Fits Stihl, DeWalt, Ryobi and Greenworks 21-380B

What It Is

This is a 0.080-inch thick, round trimmer line sold in a 1-pound bulk donut (416 feet). It’s designed for electric and gas string trimmers from Stihl, DeWalt, Ryobi, and Greenworks (model 21-380B). The round profile suits general residential trimming of grass and light weeds.

Fitment & Compatibility

Before buying, confirm three things:

• Line diameter: Your trimmer head must accept 0.080-inch line. Check your manual or existing line; many electric trimmers use 0.065–0.080, but some gas models require thicker (0.095–0.105).
• Line type: This is a bulk donut, not pre-cut strips or a pre-wound spool. You’ll need to cut and load it manually. Works with most bump-feed or fixed-line heads that accept loose line.
• Brand/model: Listed for Stihl, DeWalt, Ryobi, and Greenworks 21-380B, but any trimmer with a compatible head and 0.080" capacity will work. EGO brand is listed, but this is Oregon (not EGO) line—check your trimmer’s line diameter, not just brand.

Key Things to Know

• Quality: Oregon Gatorline is a durable, twisted-coextruded line that resists fraying better than basic round line. It’s a mid-tier upgrade from cheap bulk line.
• Installation: Easy to load if you’ve done it before. No special tools needed, but you must cut exact lengths per your head’s instructions. Overloading jams the head.
• Common gotcha: 0.080" is thinner than many gas trimmers prefer. If your trimmer recommends 0.095" or 0.105", this will snap faster on thick weeds.
• Value: 416 feet is a lot of line—enough for multiple seasons for most homeowners. At ~$0.04/ft, it’s cheaper than pre-wound spools.

Should You Buy It

Buy this if you own an electric trimmer (Stihl, DeWalt, Ryobi, Greenworks) that uses 0.080-inch line, want a bulk supply for frequent trimming, and don’t mind manually loading the spool. Skip it if your trimmer requires thicker line (0.095+), you prefer pre-wound spools, or you only trim light grass—a thinner line would be cheaper.