HIPA Pre Air Filter with Primer Bulb Fuel Filter Spark Plug for STIHL FS75 FS80 FS85 String Trimmer Brushcutter Air filter Length 2-3/8" x Width 2-3/8" x Thickness 1/4" Fitment models: STIHL FS75 FS80 FS85 string trimmer Package include: 1 x pre filter, 1 x air filter, 1 x primer bulb, 1 x spark plug, 1 x fuel filter