Washable and reusableDesigned for industrial applicationsHigh air flow with excellent filtrationEase of maintenanceOne year limited warrantyThe K&N E-4600 replacement air filter is constructed with layers of woven cotton for superior filtration and low air restriction to help your engine run more efficiently. This air filter can be washed and reused. It has an inner wire support that provides extra strength to protect the air filter under extreme conditions. The E-4600 is easy to install and is custom designed to fit some Ingersoll Rand equipment, as well as other applications.