This portable sand blaster has a 10 gallon pressure tank for sandblasting,Tmedia size can be used in 60~120mesh(suggest 80 mesh ), as well as a pressure gauge you can see the operating pressure. Make sure the sand blaster can work and the pressure is within the safe range(never over 125 psi) and a shut-off valve to stop working. The self-draining wet trap which keeps the ejected media dry is easy to use. The sand blaster can treat local surface very well, such as removing automobile body paint and removing rust on metal parts. Equipped with 98" hose,fulling funnel, two 6" rubber wheels and handles that allow easy movement of the machine while working. GAS-WATER SEPARATOR Gas-water separator can keep the drying of sandblasting in the barrel and meet higher requirements of sandblasting,Since wet sand tends to clog,our sand blaster can make sure the the compressed air stays dry to prevent clogging. RUBBER WHEEL Equipped with handle is bending Angle in line with human comfort design and two 6" rubber wheels that allow easy movement of the machine while working. BAROMETRIC INDICATOR Display the working pressure, so that the user can observe when operating, to ensure that the machine works in a safe pressure, reduce the safety hazard. Read more Specification Weight: 41.9lbs packaging: 1 pcs DIM: 30.3*16.5*14.9(in) Working pressure: 6-25 CFM Sand loading volume: 8.4Gallon. the operation pressure never exceed over125 psi Disconnect the tool from the air-supply before changing