1、Applicable Models: This air filter housing cover assembly is designed to fit for FC55, FS38, FS45, FS46, FS55, FS55R, HL45, KM55, KM55R lawn mowers, which can be perfectly fit with your machine. 2、Complete Accessories: This lawn mower accessories set contains one housing and one cover. Durable and practical, improve the efficiency of the lawn mower. 3、ABS Material: The air filter housing cover assembly is made of excellent ABS, which is durable with high strength to ensure optimal performance and a healthy life. 4、Improved Filtration: The lawnmower air filter housing and cover have been rigorously tested to improve filtration, help keep the engine clean and increase combustion efficiency. 5、Convenient Installation: The housing cover assembly is easy to install and replace, simply remove old parts and put this new one in its place, convenient for daily maintenance.