Air Filter for your S&B Cold Air Intake are available with Cleanable Cotton or Dry Extendable filter media. Both offer similar performance characteristics, so the decision comes down to how you want to maintain your filter.Dry Extendable Performance is comparable to Cotton Cleanable filters. Extend the life of the filter by blowing it out with compressed air up to 3 times and then discard. Ideal for dry, dusty driving conditions.Details:Fits: Intake Kit 75-5144 and 75-5144DFilter Type: DryFilter: ExtendableFilter Material: PaperSold As: Each