Replaces Model: YS-721-04041 721-04041, 416405,GX22425, 532416405, 921 04041 and many other models Mower attachment fits on the end of a standard garden hose and attaches to the mower deck washout port of riding mower decks, zero turn mower decks. Used for cleaning grass clippings using including mulching and other debris Also used in other tools including a clean out for tile saws, chain saws, cultivator, and more. Deck kit includes coupler only