Air Filter Fits Honda 17211-899-000 420cc GX240 GX270 GX340 GX390 EB3000 EB3500One New Aftermarket Replacement Foam Air Filter for Honda GX Series Engines and EB EM EG EX Series Generators This foam air cleaner element fits the air cleaner housing on Honda GX240, GX270, GX340, and GX390 small engines and a wide range of Honda EB, EM, EG, EMS, EW, and EX portable generators. It keeps dust, dirt, and debris out of the carburetor and combustion chamber, protecting engine performance and extending service life. Regular replacement