Best Trimmer Line for Weed Eater String Trimmers
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Choosing a weed eater brand trimmer line starts with one fact: the line must match your trimmer’s spool and head. The listings in this group are a mix of replacement spools for named models, tool-only cordless trimmers that name a battery platform, and multi-pack line bundles. This guide compares them by what each listing states about line diameter, spool type, compatibility, included line length and included parts, so the weed eater brand and model come first and the line comes second.
Quick answer
- Find the model number on your trimmer or in its manual, then match it to a replacement spool listing that names that model.
- Check the line diameter in the listing. Listings in this group state 0.065, 0.080, 0.08 and 0.11 inch diameters.
- If you own a cordless trimmer from a named battery brand, pick a trimmer or spool that lists that battery or model family.
- Count the line lengths in the package. Some bundles give 10 to 11 foot spools and others give several coils.
Why the brand and model matter more than the line
Trimmer line is not one universal part. A spool has a diameter that must fit the line hole, a cap that must hold the spool, and a shape that must match the head. A line that fits one head can rattle, feed poorly or jam in another. That is why several listings in this group name exact model numbers and say to check your trimmer before buying.
The listings also differ in what they are. Some are only line spools with a cap. Others are complete cordless trimmers that include a battery, a head and a line already wound. If you need a replacement spool, a complete trimmer is the wrong purchase, and the reverse is also true. Read the first line of each listing and confirm whether it is a spool or a tool.
Line diameter and length
Diameter is listed in inches in most of these listings. The Ryobi spool listing states an 0.065 inch line, 11 feet long, pre-wound on a spool. The Ryobi cordless spool bundle states an 0.080 inch line, 11 feet long, with 10 spools and a total of 110 feet. The Worx spool listing gives 0.08 inch line in a 3-spool and cap kit. Use the diameter in your manual, because a thicker line can fail to feed through a small hole.
Length matters for how often you reload. A bundle with several spools is useful for a large yard or a trimmer you use often. A single spool is enough for a small yard. Several cordless trimmer listings state that the head uses bump feed, which releases line with a tap, so check your head type before buying.
Compare the listed line and trimmers
Each block below uses only what the listing states.
1. Cordless String Trimmer Compatible with Milwaukee 18V (Tool Only), 3-in-1
This tool-only trimmer is listed as compatible with Milwaukee 18V batteries, which are not included. The listing says it has a built-in fuel gauge, a brushless motor, a 75 degree tilting head, a 90 degree handle and a 50 to 60 inch telescopic shaft. It is listed at 5.5 pounds and folds to 28 inches. The package includes 18 extra lines of 0.11 inch diameter. The listing gives an 8500 rpm no-load speed and an 11 inch cutting width. It suits a user who already owns Milwaukee 18V batteries.
2. Ryobi One+ AC14RL3A String Trimmer Spool, 11 ft 0.065 inch
This is a replacement spool listed for the Ryobi One+ AC14RL3A spool. The listing says it is 11 feet of 0.065 inch nylon line, pre-wound, on an ABS spool. It gives a list of compatible Ryobi 18V trimmer model numbers, and says the package includes 12 spools and 2 spool caps. The listed weight is 4.16 ounces. Check the model list against your trimmer before ordering, because compatibility is named model by model.
3. Worx Spool Line and Cap Cover for Worx Weed Eater String, WA0014
This kit is listed with three replacement spools and one cap. The listing names the WA0014 spool and says it fits Worx models WG168, WG184, WG190 and WG191. It describes a copolymer nylon line, and says the spools are wound to reduce tangling. The spool line is listed at 0.08 inch diameter. The listing gives a 3-plus-1 pack and a 4.96 ounce weight. It is a direct replacement for a named Worx spool.
4. Cordless String Trimmer and Lawn Edger, 12-Inch, Auto Line Feed, Tool Only
This trimmer is sold as a bare tool. The listing says battery and charger are not included, and that it is compatible with selected 18V battery models including BL1820, BL1830, BL1840, BL1850 and BL1860. It is listed with an 8500 rpm speed, a 12 inch cut width, a 180 degree adjustable handle and a 0 to 90 degree pivoting head. The listed weight is 3.8 pounds. Verify the battery model before you order.
5. Cordless String Trimmer and Lawn Edger for DEWALT 20V, 14-inch, Tool Only
This trimmer is listed for DEWALT 18V to 21V lithium ion batteries, including DCB200, DCB204 and DCB206. The listing says the battery is not included. It has a 14 inch cutting width, a speed of 20,000 rpm and a weight of 5 pounds. The listing describes an auto line feed, a 180 degree adjustable handle and a 3-in-1 setup for trimming, edging and mini mowing. Choose it if you own a DEWALT battery and want a wide cut.
6. Ryobi One+ Weed Wacker String Refill Line, 0.080 inch, 10 Spools
This bundle is listed as 10 pre-wound cordless trimmer spools with a total length of 110 feet, each spool 11 feet of 0.080 inch nylon line. The listing says it is compatible with Ryobi One+ AC14RL3A trimmer models in the 18V, 24V and 40V range, and gives a table in its image to check model numbers. It has an ABS spool and a 2-pack trimmer string cover. The listed weight is 12.3 ounces. It suits an owner who reloads often.
Review: the Milwaukee 18V string trimmer in depth
The Milwaukee 18V trimmer is the most complete tool-only listing in this group, so it shows how to read a trimmer line listing. It is compatible with Milwaukee 18V batteries, and the listing says the battery and charger are not included. The brushless motor and the built-in fuel gauge are both listed. The fuel gauge shows the remaining charge, which the listing says prevents surprise shutdowns.
The head tilts 75 degrees and the handle turns 90 degrees, and the telescopic shaft runs from 50 to 60 inches. The listing gives a folded size of 28 inches and a weight of 5.5 pounds, which makes it a candidate for a smaller garage. The package includes 18 extra lines of 0.11 inch diameter, which is a thicker line than the 0.065 and 0.080 inch spools in this group. Confirm that a 0.11 inch line is correct for your head before reloading.
The listing says that a 2Ah battery handles a quick edge job, while a 4Ah or larger battery gives 30 to 55 minutes. Those run time figures are listed by the seller and should be treated as a guide. The closest alternatives are the DEWALT 20V trimmer, which lists a 14 inch cut and a higher speed, and the Ryobi spool bundle, which is only line. Choose the Milwaukee trimmer if you already own the battery and want the fold-down shaft and extra line in one box.
Checking your head before you buy line
Before you order any line, look at the cutting head on your weed eater. A bump-feed head releases line when you tap it on the ground, and it usually takes a spool with two holes for the line ends. An auto-feed head releases line automatically while the motor runs, and the listings in this group describe this type on several tools, including the Ryobi, Worx and DEWALT-compatible trimmers. A fixed-line head uses a length of cut line rather than a spool. Each head type takes a different consumable, so the listing has to match the head you own, not only the make.
Next, check the line diameter against the hole in your head. A line that is too thick will not feed. A line that is too thin will wear quickly and can break under load. The listings in this group state 0.065, 0.080, 0.08 and 0.11 inch diameters, and each one is named for a specific family of trimmers. If your manual gives a diameter, use that figure and ignore any general claim that a thicker line always cuts better.
Finally, check the spool count and the included cap. A replacement spool without a cap may not seat correctly in the head. A multi-spool bundle gives you spares for the work season, which is useful when you cut tall grass or thick weeds. A single spool is enough for a small yard, but keep one in the garage so a line break does not stop your work.
Mistakes to avoid
- Buying a spool without checking the model list. The Ryobi and Worx listings name specific models.
- Buying a tool-only trimmer and expecting a battery. The Milwaukee, DEWALT and 12-inch listings state the battery is not included.
- Mixing line diameters. The 0.065, 0.080 and 0.11 inch lines in this group are not interchangeable.
- Overlooking the head type. Bump-feed and auto-feed heads need the right spool.
- Assuming a bundle fits every trimmer. Check the compatibility section before ordering.
FAQ
What line diameter do I need?
Use the diameter in your owner’s manual or the one named in the listing that fits your model. Listings here state 0.065, 0.08 and 0.11 inch line.
Is a universal trimmer line available?
The listings in this group name specific models or battery platforms. Check the model list before buying any line.
How much line comes on a spool?
The Ryobi spool listing gives 11 feet per spool. The Ryobi bundle gives 10 spools totaling 110 feet. Other listings state a count of spools or coils without a length per coil.
Can I buy a trimmer without a battery?
Several listings in this group are tool only. If you own a compatible battery, you can save money, but confirm the battery model in the listing first.
Do I need a cap with the spool?
Some spool listings include a cap or cap cover. Check whether your trimmer uses a separate cap before ordering.
Why does line sometimes fail to feed?
The most common listed causes are a line diameter that does not match the head, a spool that is not seated correctly, or a line that is wound in the wrong direction. Check the spool against your manual before reloading, and make sure the ends sit in the holding slots.
What should I check before buying trimmer line?
Check the model or battery platform, line diameter, spool type, included length and whether the listing is a spool or a complete trimmer.
Bottom line
Buy trimmer line by your trimmer’s model, not by the make printed on the box. Match the line diameter, check the spool or head type, and confirm the battery if you are buying a tool. A listing that names your model is the safest choice.
Sources
This post relies on product listing data only. No separate reference page was used.
