4PK Air Filter Fits Kawasaki FR651V FR691V FR730V FS481V Engine Lawn MowersSet of (4) New Aftermarket Replacement Air Filter and Pre Filter Kits Fits Kawasaki FR FS Series Engines This value pack includes four complete air filter and pre filter kits designed Fits Kawasaki FR and FS series 4 cycle engines commonly found in zero turn, stand on, and walk behind lawn mowers. Each kit consists of one pleated paper air filter sized for internally vented carburetors and one foam pre filter that catches coarse debris before it