Echo Original Equipment Speed-Feed® 400 Trimmer Head - 99944200907B

This Speed-Feed® 400 Trimmer Head is used here;
· 99944200907B Speed-Feed 400 Head-->SPEED-FEED 400 Trimmer Head
· SRM-225U S/N: S79012001001 - S79012999999-->SPEED-FEED 400 Trimmer Head
· SRM-225U S/N: S79111001001 - S79111999999-->SPEED-FEED 400 Trimmer Head
· SRM-225U S/N: S79213001001 - S79213999999-->SPEED-FEED 400 Trimmer Head
· SRM-225i S/N: S08712001001 - S08712999999-->SPEED-FEED 400 Trimmer Head
· SRM-225i S/N: S54911001001 - S54911999999-->SPEED-FEED 400 Trimmer Head
· SRM-225i S/N: S96412001001 - S96412999999-->SPEED-FEED 400 Trimmer Head
· SRM-225i S/N: S96511001001 - S96511999999-->SPEED-FEED 400 Trimmer Head
· SRM-230 S/N: S65611054955 - S65611069327-->SPEED-FEED 400 Trimmer Head
· SRM-230 S/N: S65611069328 - S65611999999-->SPEED-FEED 400 Trimmer Head
· SRM-230 S/N: S73112328928 - S73112429314-->SPEED-FEED 400 Trimmer Head
· SRM-230 S/N: S73112429315 - S73112999999-->SPEED-FEED 400 Trimmer Head

This is an OEM Echo part.