Air Filter for Honda 17210-ZE1-505,17210-ZE1-820,17210-ZE1-821 (GX120,GX160) Brand New Aftermarket Air Filter Size:4" L x 2-7/8" W x 2-3/4" H Replace Honda 17210-ZE1-505,17210-ZE1-517 Replace Honda 17210-ZE1-820,17210-ZE1-821,17210-ZE1-822 Fits Honda engine models GX120,GX140,GX160,GX200. (3.5 to 6.5HP engine)