aFe MagnumFLOW Air Filters UCO P5R A/F P5R 3F x 5B x 3-1/2T x 12H

The KN Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your KN air filter when used in very dusty conditions. The Airforce Pre-Cleaner is designed to be cleaned with KN Cleaner or soap water. Red colored Airforce pre-cleaners are oiled with KN air filter oil after they are cleaned. They are made from large, open cell foam. Gray colored Airforce pre-cleaners do not use oil. They have smaller foam cells.
The KN Airforce pre-cleaner is a specially designed foam filter wrap made to extend the service interval of a KN air filter when used in very dusty conditions. Red colored pre-cleaners are oiled while gray colored pre-chargers are not.