WT-856-1 WALBRO DIAPHRAGM CARBURETTOR FOR 2 AND 4-STROKE ENGINES REPAIR KIT: K20-WAT (code R122314) MEMBRANE KIT: D20-WAT (code ) R122338) Reference : R120626 Original Code: ALSO COMPATIBLE WITH ECHO CHAINSAW MODELS: G500 CODE: R120626 ORIGINAL CODE: Z288081001 CZ