The 5th generation Honda Odyssey (model years 2018-2023) has front windshield wipers (26-inch for driver side, 22-inch for passenger side) and a rear wiper (16-inch rear). For the most cost-effective way to change the wipers, you may purchase the blade-refills. The quicker and easier option is to replace the wiper blades completely with one of the many great aftermarket wiper blades on the market. The aftermarket ones do cost a good deal more than the blade refills, but they do tend to last longer and are super easy to install.