Replacement Air Cleaner Case w/ Choke Lever. Replaces OEM # ECHO P021000991. Compatible with Echo / Shindaiwa Blower Model ES-250, PB-250. OEM part. ES-250 S/N: P33612001001 - P33612999999-->Fuel System, Side Handle, ES-250 S/N: P33612001001 - P33612999999-->Intake, ES-250 S/N: P33711001001 - P33711999999-->Fuel System, Side Handle, ES-250 S/N: P33711001001 - P33711999999-->Intake, ES-250 S/N: P33813001001 - P33813999999-->Fuel System, Side Handle, ES-250 S/N: P33813001001 - P33813999999-->Intake, PB-250 S/N: P05412001001 - P05412999999-->Fuel System, PB-250 S/N: P05412001001 - P05412999999-->Intake PB-250 S/N: P30911001001 - P30911999999-->Fuel System, PB-250 S/N: P30911001001 - P30911999999-->Intake, PB-250 S/N: P31013001001 - P31013999999-->Fuel System, PB-250 S/N: P31013001001 - P31013999999-->Intake, PB-250 S/N: P33112001001 - P33112999999-->Fuel System, PB-250 S/N: P33112001001 - P33112999999-->Intake, PB-250 S/N: P33211001001 - P33211999999-->Fuel System, PB-250 S/N: P33211001001 - P33211999999-->Intake PB-250 S/N: P33313001001 - P33313999999-->Fuel System, PB-250 S/N: P33313001001 - P33313999999-->Intake Air Cleaner Case w/ Choke Lever P021000991 Compatible with Echo / Shindaiwa Blower Model ES-250, PB-250. OEM