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

Product Specifications:
Product Style: Filter Wrap - Round Tapered
Wrap Type: Airforce Pre-Cleaner
Colour: Red
Material Used: Foam
Base Inside Diameter: 6 in (152 mm)
Top Inside Diameter: 5 in (127 mm)
Height: 9 in (229 mm)
Closed Top: No