Poweka Air Filter Fit For Stihl FS38 FS45 FS46 FS55 HS45 FC55 Trimmer Edger Pruner Replaces # 4140 124 2800 (5 Packs) New high quality aftermarket air filter Fits stihl FS38 FS45 FS46 FS55 HS45 FC55 Replacement OEM # 4140-124-2800 Package includes 5 x air filters