Abrasive Blast Pot / Sandblasting Machine, Portable, 3.5 Cu. Ft. (100 Liters), 150 Psi (10.3 Bar), Pressure Release System, Pneumatic, Incl: Mpv/Combination Valve, 1" Piping W/Moisture Separator, 55' Twinline Assy, Control Handle #2 & Bronze Blasting Package Common Applications for Pressure Release System: Stationary blasters for blast rooms, Great starter blaster for first timers, favorite of rental houses, and use when automatically filling from an overhead hopper