Oregon 99-121, BLADE SNAPPER 20-11/16IN MULCHER 1924099 21" cut, recycler Also Replaces: SNAPPER: 1-7002, 17002, 1-7168, 17168, 1-9645, 19645, 1-9702, 19702, 1-9710, 19710, 1-9795, 19795, 2-6691, 26691, 7026691 Product Code:99121