EPS Air Filter Kit (Stihl 500 & 661)

This air filter kit includes one filter cage and one pre-oiled Filter as well as one o-ring that fits around the knob that secures the cover to the saw.

This kit is designed to fit under the OEM air filter cover on Stihl models 500 and 661. Testing has shown that the Foam Filter does a better job of filtering out fine particulates than the OEM filter, while also improving performance.