Shop for Outdoor Power Equipment at The Home Depot. This pre-wound replacement spool is a simple and easy solution for your Homelite electric trimmer. Why mess with winding line. Just pop a new pre-wound spool in your Homelite trimmer, and you're ready to get back work. This quick, easy solution is ideal for Homelite electric trimmer models: UT41110, UT41112, UT41120, UT41121.