HIPA RB-K90 Carburetor with Primer Bulb Fuel Filter Hose for ECHO ES-255 PB-251 PB-255 PB-255LN Blower A021001591 Replacement manufacturer part number: RB-K90, A021001590 A021001591 A021001592 A021001593 fuel tank return pipe 13201049730, overall length: 1 feet Fits ECHO ES-255 PB-251 PB-255 PB-255LN blower Package include: 1 carburetor + 1 fuel pipe + 2 primer bulb + 1 fuel filter