Stens 610-401 Fuel System Maintenance Kit Replaces: Echo: 900103, 90097 Fits: Echo GT-200EZR, GT-201EZR, GT-200i, GT-201i, GT-200R, GT-201R, PE-200, PE-201, PPF-210 Fits: Echo PPF-211, SRM-210, SRM-211, SRM-210i, SRM-211i, SRM-210U, SRM-211U, SRM-210SB, SRM-211SB Fits: Echo HC-150, HC-151, HC-150i, HCR-150 and HCR-151 Not compatible with greater than 10% ethanol fuel ; Cannot be used in units built afte