Fits Models: Echo specific CS-271T, CS303T, CS310, CS450, CS450P and CS530 chainsawsWalbro specific WA and WT carburetors
Specifications: Ethanol: Not compatible with greater than 10% ethanol fuel Ethanol Not compatible with greater than 10% ethanol fuel Packaging type OEM packageVerify OEM part number by referring to engine model and spec - does not fit all applications