HIPA Carburetor with Mounting Gasket Primer Bulb for ECHO GT-225 GT-225I SHC-225 SHC-225S Trimmer Replacement manufacturer part number: A021001690 A021001691 A021001692 For ZAMA RB-K93 Fits ECHO GT-225 GT-225I SHC-225 SHC-225S Trimmer Package include: 1 x carburetor, 2 x primer bulb