Replace:99944200907 99944200902 (This Head Doesn`t Come With Adapters) Trimmer head Replaces 78890-30000 ,78890-11000, 78890-18001 and 78890-18000. string trimmer For Echo Trimmer SRM-140 SRM-200 SRM-202 SRM-225U SRM-250 SRM-251 SRM-260 SRM-261 SRM-265 SRM-266 SRM-266S. Fits Shiandaiwa T195S T220 T222 T230 T230s T231 T242 T242X T2510 T2510X 22T C230 C242 C2510. Echo string trimmer Replacement Echo PAS210 PAS211 PAS225 PAS225VP PAS225VPB PAS230 PAS231 PAS260 PAS261 PAS265 PAS266 PAS280 PAS2100 PAS2400 PAS2601 power source attachment Trimmer Head Replacement Echo SRM-210 SRM-225 SRM-225i SRM-230 SRM-2600 SRM-2100 SRM-210 SRM-230 SRM-2600 SRM-2100 Trimmer. SRM225 trimmer head For Echo GT200 GT225 GT225i GT225L GT225SF GT230 GT251 GT100 GT140 GT160 GT1000 GT1100 GT2000 GT2100 GT2101 GT2102 GT2103 GT2200 GT2301 GT2400 Trimmer. Note:This Trimmer Head for straight shaft trimmers. To ensure that you receive the right parts for your engine, it's crucial to verify your engine model and part numbers before checking out. SRM-225 Trimmer Head