Sparmax Silver Bullet mini moisture tapA Sparmax original design, the lightweight and non invasive SilverBullet attaches to the airbrush and acts as the last, and most effective, line of defense against moisture mixing with the air. 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 airbrush.