
This is a A-B1AF1800 Air Filter, Stihl 4149-120-1800 PN: B1AF1800Main Description As Following : A-B1AF1800 Air Filter, Stihl 4149-120-1800 PN: B1AF1800 Found in Section & Models : Sunbelt - Air Filters > Air Filters, Stihl TRIMMER: FS94 Associated Items : New Also This is An Aftermarket Product And : Height: 7/16" Length: 2-13/16" Width: 2-3/4"