K&N - 25-3900
Air Filter Foam Wrap
The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used in very dusty conditions. The Airforce Pre-Cleaner is designed to be cleaned with K&N Cleaner or soap & water. Red colored Airforce pre-cleaners air oiled with K&N 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.
- Extends Service Interval Of Your Filter
- Large Open Cell Foam Construction
- Stops 90 Percent Of Dirt With Very Low Air Restriction
- Cleanable With K&N Filter Cleaner or Soap And Water
- Wraps Your Air Filter With An Additional Pre-Filter