KBS offers Dry Air Spray Gun Filters in sets or in singles. If you have done painting projects before than you know that moisture cannot be present when applying product. This filter is a great way to make sure you don't have to start all over. The filter will absorb up to one fluid ounce of moisture and insure perfect looking results. Designed to remove the smallest contaminant particle, oil-aerosol or drop of moisture to supply clean, dry, oil free air to your spray gun. Users report reduced paint defects, resulting in increased productivity with the ultimate final finishes.