Pre-filter for Echo trimmers replaces A226000371, A226000370 can be used with our #EC14163 Filter. Fits Echo BRD-280, HCA-266, PAS-266, PAS-280, PE-266, PE-280, PPF-280, PPT-266, PPT-280, SCH-266, SRM-266 and SRM-280 Trimmers. All units ending with 266, 280 engines regardless of application. Rotary# 14187, 27-14187; Stens# 605916, 605-916.