w/ HIGH FLO Mod and finger operated air valve Suction Abrasive Metering Valve

w// HIGH FLO Mod and finger operated air valve Suction Abrasive Metering Valve
w// HIGH FLO Mod and finger operated air valve Suction Abrasive Metering Valve
w// HIGH FLO Mod and finger operated air valve Suction Abrasive Metering Valve
w// HIGH FLO Mod and finger operated air valve Suction Abrasive Metering Valve