String Trimmer Air Filters & Prefilters
Replacement string trimmer air filters for most brands and models. This section includes all air filter kits (air fitlers and prefilters), air filter cases and miscellaneous parts that are related to your air filter. All of our paper air filters, pre filters and air filters fit string trimmers manufactured by Echo, Shindaiwa, Stihl, Tecumseh, and Kawasaki.
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For 21.2cc engines
Air FilterReplaced by #Replacement for #4140-124-2800
Stihl: 4140 124 2800
Length:2 7/16 "
Width:2 1/4 "