OEM Carburetor Kit / Zama RB-107Pack Size:1Zama RB-107J. Thomas RB-107, NHC 203-5567Echo ES230, ES231, PB230 and PB231 blowers; SRM230 and SRM231 trimmers; Zama RB-K66, A-B; RB-K67, A-B; RB-K70, A; RB-K71;RB-K72; RB-SK18, A and RB-FA1 carburetors Not compatible with greater than 10% ethanol fuel