Speed ¿¿Feed 400 (SF400) nylon line head for SHINDAIWA models C226S, T226S, C252, T252, C263S, T263XS, C263TS, T263TXS, C281TS, T281TS, C303TS, T303TS, C361T, T361T, MTA-TB - ECHO models SRM-22GES, SRM-22GES-SB, SRM222ES, SRM-2305SI, SRM-237, SRM-237TES, SRM-2621ES, SRM-2621TES, SRM-267, SRM-265TES, SRM-301TES, SRM-3021TES, DSRM-2600, DPAS- TRIMMER, MTA-TB, MTA-DTB. Comes with two adapters: blue M10 x 1.25LH (+ring) and gold M10x1.25LH. Origin C6000109, C6000110.