HIPA Carburetor Rebuild Kit RB-29 Gasket Diaphragm for ZAMA Ryobi Homelite String Trimmer / Blower A03979 Replacement manufacturer part number: RB-29, A03979 Fits the following ZAMA carburetors: C1U-H12C C1U-H12D C1U-H18A C1U-H18B C1U-H18C C1U-H18D C1U-H29 C1U-H30 C1U-H31A C1U-H31B C1U-H31C C1U-H33 C1U-H39 C1U-H39A C1U-H40 C1U-H41 C1U-H47 C1U-H48A C1U-H60 C1U-H60A C1U-H60B C1U-H60C C1U-H60D C1U-H60E C1U-M35A C1U-P10 C1U-P10A C1U-P11 C1U-P11A C1U-P11B C1U-P12A C1U-P12B C1U-P14 C1U-P14A C1U-P5 C1U-P6A C1U-P7 Check valve and primer bulb included