Genuine Echo SF400 Speed Feed Trimmer Head to fit the following models :-
- SRM236, SRM265, SRM2620, SRM300, SRM3020, SRM335, SRM3610
Echo’s revolutionary Speed Feed SF400 takes the hassle out of refilling your trimmer head. In fact, the Speed Feed reloads in under 30 secounds with just three easy steps, all without taking the head apart. The SF400 is perfectly balanced for vibration free operation and comes pre-loaded with 2.4mm Silentwist line.