21560070 SRM Echomatic Trimmer Head - Fits Echo SRM-210 SRM-225 SRM-230 SRM-235 - Replaces 21560050 200095200 Thermostat 6931EL3003D Gently screw the bulb into

Gently screw the bulb into the E12 socket until it is snug

Air Bubble Removal: Shake the filter for about 5 seconds

or the internal wires are exposed

and a ceramic electrode

21560070 SRM Echomatic Trimmer Head - Fits Echo SRM-210 SRM-225 SRM-230 SRM-235 - Replaces 21560050 200095200 Thermostat 6931EL3003D Gently screw the bulb into21560070 SRM Echomatic Trimmer Head Key Features Reliable Semi Automatic Feed: The classic Echomatic "bump" system provides instant line advancement with a simple tap on the ground, ensuring you never have to stop mid job to manually pull line. High Impact Structural Polymer: Manufactured from a specialized glass reinforced nylon composite to resist cracking and shattering during high velocity impacts with curbs and fence posts. Optimized Dual Line