COMPLETE AIR FILTER COMPATIBLE WITH: BRUSH CUTTER MODELS: FS 50 FS 51 FS 60 FS 61 FS 65 ALSO COMPATIBLE WITH: BLOWER MODELS: BG 60 BG60 PRE-FILTER CODE: BM 006816 STIHL 006815 Original code: 4114 120 1600 41141201600