This Replacement Trimmer Spool for ECHO SRM String Trimmer is compatible with ECHO’s SRM ECHOmatic Pro trimmer head. The ECHOmatic Pro is a bump-to-advance style head. The ECHOmatic Pro trimmer head is compatible with ECHO SRM-style string trimmers.
- Accommodates from .095" to .130" diameter line
- Wide slots for easy line re-spooling
- Recommended replacement for excessive wear on bump cover
- For bump feed trimmer heads