Pre Filter Fits Kawasaki FR651V FR691V FS481V FS541V FS600V FS730V2 22 ThruOne New Aftermarket Replacement Pre Filter Fits Kawasaki FR and FS Series Engines This green foam pre cleaner wraps around the primary air filter on Fits Kawasaki (Fits Kawasaki Engines) FR and FS series V twin engines, trapping coarse dust and debris before they reach the main filter element. Replacing this pre filter regularly extends main filter life and helps protect engine internals from premature wear on zero turn mowers, lawn tractors, and