Podoy 793569 Air Filter for Briggs & Stratton GY21055 with Pre Filter 793569 Replace JOHN DEERE GY21055 MIU11511 ROTARY 12673 Replaces briggs and stratton 793569 GY21055 air filter The bottom diameter: 3-inch,the inner diameter: 1-1/2-inch,height: 5-7/8-inch Package includes 1 x air filter + 1 pre filter Non original aftermarket parts, please check the size for compatibility before ordering it.