Air filter Replaces OEM number:
STIHL 4144-124-2800;41441242800
FS 40, FS 40C, FS 50, FS 50C, FS 50-L, FS 56, FS 56R, FS 56C, FS 56RC, FS 70C, FS 70RC, FC 56C, FC 70C, KM 56, KM 56R, KM 56C, KM 56RC, HT 56C;FS56 FS70 FS40 FS40 FS50 HT56
