This 21-inch side discharge kit, Compatible with Toro models 17730, 17732, 17734, 21319, 29732, 29734, and 21320, this side discharge kit helps maintain consistent cutting performance, especially when dealing with taller or thicker grass, efficiently channels grass clippings away from your mower, preventing clumping and ensuring a clean, even cut. Installation is straightforward, Simple attachment mechanism allows for quick mounting and dismounting