Sparmax [SP.ABF] Sparmax Silver Bullet Airbrush Moisture FilterA Sparmax original design, the lightweight and non invasive Silver Bullet attaches to the airbrush and acts as the last, and most effective, line of defense against moisture mixing with the air. Features Has double the filtering effect of other airbrush attached moisture traps, delivering dryer, cleaner air. The collected moisture can be easily drained by pressing the spring loaded release valve. Also acts as an ergonomic grip when attached below the