S&B Filters KF-1050D High Performance Replacement Filter (Disposable, Dry Media) This filter is a dry extendable media and is ready for installation Extend the life of our dry filters: Using compressed air, blow off the outside of the dry filter keeping the air nozzle moving and no closer than 6 inches to the media 4.5" Flange ID S&B Cold Air Intake fitment specific. This filter fits S&B Filters 75-5053D & 75-5104D Cold Air Intakes