HUSQVARNA 531009224 S35 TRIMMER HEAD M10
Dual line, manually-fed trimmer head for straight-shaft trimmers. Holds line of: .080", .095", and .105". Commercial use. For 20-35 cc engine trimmers. Can be loaded 2 ways (both without any tools needed): 1) By taking it apart (very similar to the T35 head) and reloading the spool. 2) From the outside - you can reload it by having two fixed length lines and winding these into the spool.
10 mm arbor, left-hand thread. Fits: 122L, 123L, 123LD, 225L, 225LD, 225R, 225RJ, 232L, 232R, 235RJx, 240L, 322L, 322R, 323L, 323LD, 323R, 323RJ, 324Lx, 324LDx, 324Rx, 325Lx, 325LDx, 325Rx, 325RDx, 325RJx, 326L, 326Lx, 326LDx, 326Rx, 326RJx