Greenworks 20-Inch Replacement Lawn Mower Blade 29172 Go to amazon.com Related posts 13 best greenworks lawn mower Feature20-inch heat treated steel mower bladeCompatible with GreenWorks 20 inch Mower Models 25022 and 25222Easy installment DescriptionGreenworks, 20-inch Mower Blade for Greenworks 20 inch Electric and Cordless Lawn Mowers, Model Number 29172