Replacement OEM air filter from Stihl. Keep your chainsaw running efficiently with a clean air filter. This filter has a fleece (flocked) material on the surface that picks up fine particles of dust. They filter very well (which is a good thing), but tend to ice up in sub freezing conditions. We recommend a nylon mesh filter for frozen sawing conditions. These filters can load up quickly, so keep a couple of spares handy.
Air Filter Cleaner Fit for STIHL MS171 MS181 MS211 MS 171 181 211