Replaces ZAMA RB-K93, ECHO A021001690 A021001691 A021001692 Used on ECHO SRM-225 SRM-225i SRM-225SB SRM-225U Straight Shaft Trimmer / Brushcutter Echo GT-225 GT-225i GT-225L GT-225SF curved shaft trimmer / weedeater ECHO PAS-225 Gas Power Source Attachement ECHO PE-225 edger ECHO SHC-225 SHC-225S Hedge Trimmer ECHO PPF-225 PPF-235ES PPT-235ES Power Pruner Package include: 1 carburetor 2 primer bulbs 2 mounting gaskets 2 air filter 1 spark plug 1 fuel filter 3 fuel lines 1 grommet 1 vent We replaced the old yellow fuel line, the current all-black fuel lines are compatible with greater than 10% ethanol fuel