E-4522Washable and reusableEase of maintenanceHigh air flow with excellent filtrationIncreased performanceGrease provided for secure fitThe K&N E-4522 replacement air filter is constructed using an oil-free synthetic media. A tube of sealing grease is provided to ensure an airtight seal. The E-4522 provides outstanding filtration, protecting your equipment's engine. This K&N air filter can be cleaned and used again. The E-4522 air filter fits some Kohler engines, in addition to other applications.