Carburetor Kit / Zama RB 27Pack Size:1Zama RB-22, Zama RB-27Laser 48039, Laser 40712, NHC 203-5868, Oregon 49-838, Oregon 49-890, Oregon 49-897, Oregon 49-890-0, Prime Line 7-07199, Rotary 13262, Sunbelt RB-22, Tilton ZRB22, Tilton ZRB27Echo SV-4, HC1500 and SRM2301 models; Zama C1U-K10A, C1U-K12, C1U-K21, C1U-K22, A;C1U-K23, A-B; C1U-K30, A; C1U-K31, A-B;C1U-K35, A; C1U-K45 Not compatible with greater than 10% ethanol fuel