DeWalt Weed Eater String: Genuine DWO1DT802 vs Compatible Line

Best for
Large yards that burn through line fast

The Eventronic 080″ 600Ft Replacement String Trimmer is a third-party line sold for DeWalt trimmers, not a DeWalt product. Its headline is length: 600 feet of 0.080-inch line on one spool, which is the biggest single-spool footage in this group. The listing names fit for the DCST920 (Type 2/3 and P1 Type 1/2/3), DCST922, DCST925 variants and the DCST970 series, so it covers the common 20V and 60V models.

Eventronic describes the line as dual polymer resin, built to take hits on rocks, fences and hard edges without constant snapping. It also claims an aerodynamic shape that reduces drag and motor strain on cordless trimmers. The listing does not specify whether the cross-section is round, square or twisted, so treat the “aerodynamic” claim as marketing language rather than a defined profile.

This spool suits owners of a bigger property who reload often and want to cut line to length from bulk. If you would rather know exactly what the factory put on your machine, the genuine DeWalt pack below is the safer choice.

• 600 ft of 0.080-inch line
• Dual polymer resin construction
• Listed fit for DCST920, DCST922, DCST925 and DCST970 models
• Described as resisting welding and tangling inside the spool

The String Trimmer Line 0.080″ DWO1DT802 is sold under the doufuhua brand as a replacement for DeWalt part numbers DWO1DT802 and DWO1DT801. It carries 200 feet of 0.080-inch line, the smallest length among the bulk spools here, in a package that weighs just under half a pound.

The compatibility list is broad and includes 20V and 60V models such as the DCST922P1, DCST920P1, DCST925, DCST972 and DCST970B. The listing describes a mix of flexible and impact-resistant materials and an aerodynamic design, but it does not state tensile strength or the shape of the line. If you have a DeWalt string trimmer 20V that only comes out a few times a month, 200 feet is a reasonable amount to keep on the shelf.

Heavy users will run through it faster than the 2 lb YWTESCH spool or the 600 ft Eventronic roll, so this is a refill for small yards rather than a season-long supply.

Best for
Trying twisted line before buying bulk

Best for
Heavy weeds and frequent edging

The YWTESCH 0.080″ x 2LB DWO1DT802 String is a third-party line with the most defined cutting profile in this roundup. It is square and twisted: the square shape gives the line edges that slice rather than tear, and the twist is meant to add structural strength so the line does not break early at high speed.

YWTESCH lists 110 lbs of tensile strength and calls the material wear-resistant nylon that flexes on impact with rocks and concrete. The spool is sold by weight, 2 pounds, and the listing does not specify the footage. Its fit list covers the DCST920, DCST970 and DCST990 families, which mirrors the list on DeWalt’s own three-pack.

Pick this one if you edge along driveways and chew through thick weeds regularly. The listing itself describes the 0.080-inch size as ideal for light to medium tasks, so it is a better cutter, not a brush-clearing line.

• Square twisted profile for cleaner cuts
• 110 lbs tensile strength listed
• 2 lb bulk spool
• Fit list includes DCST990 models

Best for
Owners who want genuine OEM line

The DEWALT DEWALT-DWO1DT802-3 PACK DWO1DT802 String Trimmer line is the only product here actually made by DeWalt. The description calls it a genuine OEM replacement, part DWO1DT802, and includes three packs of brown 0.080-inch line, bulk packed. That makes it the reference point every other spool in this list is copying.

The listing is thin on detail. It states 225 feet in the size field, but it is not clear whether that is per pack or for all three together, so check the box before assuming a total. It gives no information on material, profile or tensile strength. What it does give is a clean compatibility list: DCST920B, DCST920P1, DCST970B, DCST970X1 and the DCST990 series in several types.

This pack suits owners who want OEM line in a DeWalt battery powered weed eater and do not want to guess about fit. If you want more footage per spool or a twisted edge, the third-party options offer that trade-off.

The YWTESCH 0.080″ x 0.5LB DWO1DT802 Weed eater string is the smaller sibling of the 2 lb spool above. The features are identical: square twisted nylon, 110 lbs of listed tensile strength and the same DCST920, DCST970 and DCST990 fit list. The difference is quantity, half a pound instead of two.

That makes it a sensible way to try twisted line in your DeWalt head before buying a bulk spool. The listing does not specify footage here either. Once you know you like how it feeds and cuts, the 2 lb version is the better long-term buy.