Air Filter Fits Stihl 4144-124-2800 KM56 FC56 FC70 FS40 FS50 FS70 HT56 by Stens $9.99 Sold out 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out PRODUCT DESCRIPTION Air Filter Fits Stihl 4144-124-2800 KM56 FC56 FC70 FS40 FS50 FS70 HT56