The Vaper Mini Inline Desiccant Filter is an import tool for spray guns and air tools. Ideal for removing moisture and contaminants like gases and unwanted particles used in compressed air tools making it optimal for spray painting, and other dry air applications. By removing the humidity or moisture levels in the air, helps prevent rust, corrosion, mold, and other undesirable effects associated with high humidity and preventing damage to tools and equipment. Ensuring that your air supply is clean and dry is critical for achieving high-quality finishes, and eliminates undesired effects like uneven finishes, dripping, sagging, running, and other flaws. The filter is disposable and you know when the filter needs replacement when the desiccant beads change from blue to pink so there is no wonder if your air supply is clean or not. Uses hose inlet and outlet of 1/4 in. Maximum pressure of 125 psi. and working pressure of 5-125 psi.