Stens 100-541 Inner Air Filter Replaces: John Deere: M123378, choler: 25 083 03, 25 083 03-s, Kubota: k7561-82360, Toro: 98-2982, Walker: 5090-3 Fits models: choler: CH25, CH26 and Th16 (canister models Only) cv460-cv493, Th16, Th18, Th520, Th575 and triad ohm Use with 100-533 air filter