1 Pressure:1000mmAq-6000mmAq 2 Air volume: 0.67m3/min-2.52m3/ ... Please call us for the detailed parametersFSR 50 roots blower|vacuum roots blower key Features 1, the product line using clover ... : Common base, belt cover, fan, pulley, motor, pulley, V-belts, pressure gauge, suction silencer (with air filter), bolt, safety valve Fourth ...