Fit For Filter For Stihl 028 For AV Q W WB Chainsaw 1118-120-1610 Engine Spare Parts vehicle fit for Stihl 028 For AV Q W Super WB Chainsaw OEM part number 1118-120-1610 for direct box mounting without Dual layer foam structure blocks sawdust, dirt wood debris to engine cylinder Elastic foam material maintains tight seal does not deform after repeated permeability design ensures stable to sustain chainsaw power Lightweight flexible structure fits filter housing without bypass gaps