Rotary 12773. Zama RB-61 Carburetor Kit . Fits Echo PB 4600 & PB 6000 w/C1M Carburetor. Similar to GND-31 for gasket & diaphram kit (Our 38-12774) Fits C1M-K24 A-B, C1M-K25 A-B, C1M-K37, A-D, C1M-K49 A-C, C1M-K76

Replaces
ZAMA: RB-61