THTEN29242 29082 Trimmer Spool Replacement 27ft 0.065 inch for Greenworks 24V 40V 21052 29272 and 21212 Dual line Electric String Trimmers with 3411546A6 Cap Covers Parts(6Pack+2 Cap)

It works but I'm still undecided whether dual string is better than one. Dual string is slightly harder to install correctly and snags more often.

Spools and replacement caps fit and work well. I don't know about longevity because I haven't had them long enough to compare but the string seems to hold up OK. I think it's a good replacement. Glad I was able to find replacement caps as the originals are wearing out.

The problem with this is the blades go to faat. I cut the neighbors. Grass and it’s not that much and i used all the blades up and nowINeed moreAll read but it work really well and I like it

Assembly and use is good, better then using cord. Sure would like to see a Steel blade then plastic...

Within 3 minutes, 1 pair of blades was gone, because they came across wood, and blocks on the ground.

I generally wind my own spools but I keep a few of these around for a quickie replacement when I don’t have the time to do my own. The caps do take a beating so it’s nice to have spare ones.

This is same quality like the original version but fraction of the cost. Works same way and very good value of money.

Several spools were tangled inside spool and broke off after weeding for 5 minutes. I like not having to respool them but hate dealing with the knots inside spools.