Iwata-Medea Pistol Grip Moisture Filter The super-fine, 5-micron filter element performs like a full-size filter separator The clear filter bowl allows a visual inspection of built-up moisture and is evacuated through a spring-loaded release valve - without taking the filter off the airbrush The Pistol-Grip Filter acts as a handle on the airbrush to relieve muscle tension Comfortable in the hand to use Miniature in size