Description: 【Material】: The 3/4 inch NPT 4 stage air drying system is made of aluminum material, which is strong and wear resistant to ensure long term performance and reliability 【Accurate Pressure Regulation】: Coalescing Filter, high reliability and performance, adopt press in self locking pressure regulation, use 1.6 Mpa pressure, accurate and stable pressure regulation 【Stage 1 Regulator/Filter】: Particulate filter are equipped with 5 microns elements, have good filtering performance, are reusable, have a long service life, and can effectively remove most of the moisture and particles in the air pipe 【Stage 2 Coalescing Filter】: Coalescing filter are equipped with 0.01 microns elements, which can remove most smaller particles, moisture, etc. that pass through the first stage combination. When the filter elements needs to be replaced, the red indicator light will light up 【Stage 3 and 4 Desiccant Air Dryer】: The desiccant air dryer can dry and clean the air before entering the pneumatic tool. You need to add desiccant beads to the metal bowl. When it's time to replace the desiccant, the beads will change from blue to pink Specification: Material: Aluminum Size Chart: Packing size 37 cmx37 cmx15 cm/14.57 inchx14.57 inchx5.91 inch Package Includes: 1x 4 Stage Air Drying System 1x Dial Gauge for the 1/4 inch 1x Connector 2x 3/4 inchx3/4 inch Male Pipe 1x 5 Microns Elements and 0.01 Microns Elements 8x Desiccant Beads Bag 1x Tape Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.