... CAD tech drawing 4.competitive price 1.roots blower Main features:(If you want to know more ... accessories:motor,electric starter,accousic enclosure.2.roots blower PerformanceBlower: Vacuum Pump:Pressure rise:9.8~98Kpa ... Shaft power:1~107kw3.Order information:Standard accessories:blower,inlet silencer with filter,outler silencer,pully,belts ... ,feel free to ask me. ZYSRH150 air blower high pressure roots ...