Who Makes Trimmerplus Attachments?

TrimmerPlus | Troy-Bilt US.

What brands will TrimmerPlus attachments fit?

Part of the TrimmerPlus attachment system, the LE720 is compatible with CRAFTSMAN, Troybilt, Remington, and other attachment capable string trimmers from major brands. Edge your drive, walkways and flower beds quickly with the LE720 lawn edger.

Are TrimmerPlus attachments compatible with Husqvarna?

A HUGE improvement over the troybilt. The husqvarna actually idles! And it indeed works with trimmerplus attachments. It says so right on a piece of paper that was attached to it in the box.